Persamaan Garis Lurus 1

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| By Dadisupriadi
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Dadisupriadi
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Quizzes Created: 1 | Total Attempts: 1,252
| Attempts: 1,252
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  • 1/15 Questions

    Ciri sebuah persamaaan adalah

    • Memiliki tanda sama dengan
    • Memilki tanda lebih kecil
    • Memilki tanda lebih besar
    • Tidak memilki tanda
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Persamaan Garis Lurus 1 - Quiz

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  • 2. 

    Gradien dilambang dengan....

    • P

    • M

    • N

    • Q

    Correct Answer
    A. M
    Explanation
    The correct answer is "m" because "gradien" is the Indonesian term for "gradient" in English. In mathematics, the gradient is a measure of how steep a line or a curve is. In the given question, "m" is positioned between "p" and "n," indicating that it represents the gradient between those two points.

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  • 3. 

    Persamaan y = 3x +2 maka garis titik potong sumbu y atau jika nilai x=o adalah

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 2
    Explanation
    The given equation is in the form y = mx + c, where m is the slope and c is the y-intercept. In this equation, the slope is 3 and the y-intercept is 2. To find the y-intercept, we substitute x = 0 into the equation. So, y = 3(0) + 2 = 2. Therefore, the line intersects the y-axis at y = 2.

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  • 4. 

    Jika suatu gradien memilki nilai yang sama maka gradien garis tersebut adalah.....

    • Bertolak belakang

    • Sejajar

    • Horizontal

    • Saling tegak lurus

    Correct Answer
    A. Sejajar
    Explanation
    If two gradients have the same value, it means that the lines represented by those gradients have the same steepness or slope. When two lines have the same slope, they are parallel to each other. Therefore, the correct answer is "sejajar," which means parallel in English.

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  • 5. 

    Apa yang dimaksud gradien ....

    • Garis lurus

    • Nilai x

    • Garis pad titik koordinat

    • Kemiringan garis

    Correct Answer
    A. Kemiringan garis
    Explanation
    The correct answer is "kemiringan garis". This term refers to the slope or incline of a line. It measures how steep or gradual a line is. The gradient of a straight line is determined by the change in y-coordinates divided by the change in x-coordinates between two points on the line. It indicates the rate at which the line is rising or falling.

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  • 6. 

    Gradien yang melewati titik (0,0) dan (-4,-8) adalh

    • 0

    • 1

    • 2

    • 3

    Correct Answer
    A. 2
    Explanation
    The gradient passing through the points (0,0) and (-4,-8) can be found using the formula (y2-y1)/(x2-x1). By substituting the values, we get (-8-0)/(-4-0) = -8/-4 = 2. Therefore, the correct answer is 2.

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  • 7. 

    Dibahaw ini adalah bentuk persamaan garis lurus ....

    • Y= 2x

    • Y=45+5

    • Y = 2y +5

    • 3+6 = 11

    Correct Answer
    A. Y= 2x
  • 8. 

    Rumus gradien yang berbentuk persamaan ax+by +c = 0 adalah ....

    • Y = mx + c

    • Y = a + b

    • Y = 2x + c

    • Y = c

    Correct Answer
    A. Y = mx + c
    Explanation
    The given equation is in the form "ax + by + c = 0", which represents a linear equation. The general form of a linear equation is "y = mx + c", where "m" represents the slope of the line and "c" represents the y-intercept. Therefore, the correct answer is "y = mx + c".

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  • 9. 

    Hitung gradien yang melalui garis (-3,3) dan (6,0) adalah......

    • 3

    • 1/3

    • -3

    • 6

    Correct Answer
    A. 1/3
    Explanation
    The gradient, or slope, of a line can be calculated using the formula (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are the coordinates of two points on the line. In this case, the coordinates given are (-3,3) and (6,0). Plugging these values into the formula, we get (0 - 3) / (6 - (-3)) = -3/9 = -1/3. Therefore, the correct answer is 1/3.

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  • 10. 

    Jarak antara bandung dan jakarta adalah 80 km dan dapat ditempuh dengan waktu 2 jam maka kecepatannya adalah

    • 3jam

    • 40 km

    • 40km/jam

    • 40km/menit

    Correct Answer
    A. 40km/jam
    Explanation
    The correct answer is 40km/jam. This is because the question states that the distance between Bandung and Jakarta is 80 km and it can be covered in 2 hours. To find the speed, we divide the distance by the time, which gives us 80 km / 2 hours = 40 km/hour.

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  • 11. 

    Jika ada persamaan 2x - 6 y  + 7 = 0 nilai gradiennya adlah ....

    • 10

    • 1/2

    • 7

    • 1/3

    Correct Answer
    A. 1/3
    Explanation
    The correct answer is 1/3. The given equation is in the form of a linear equation, y = mx + c, where m represents the gradient. By rearranging the equation, we can determine the gradient by dividing the coefficient of x by the coefficient of y. In this case, the coefficient of x is 2 and the coefficient of y is -6. Dividing 2 by -6 gives us -1/3, which is the negative reciprocal of the gradient. Therefore, the gradient is 1/3.

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  • 12. 

    Rumus gradien yang melewati satu titik  (0,0) dan (x,y) adalah ....

    • Y/x

    • X/y

    • Y=x

    • X = 0

    Correct Answer
    A. Y/x
    Explanation
    The correct answer is y/x. This is because the formula for calculating the gradient (slope) of a line passing through two points (0,0) and (x,y) is given by the change in y divided by the change in x, which is represented by y/x.

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  • 13. 

    Persamaan garis yang malaui titi adalah (2,3) dam (-2,1)

    • Y=1/2x + 2

    • Y = 2x

    • Y = 3x +2

    • Y = 2x+2

    Correct Answer
    A. Y=1/2x + 2
    Explanation
    The given equation y=1/2x + 2 matches the given points (2,3) and (-2,1). The equation y=1/2x + 2 represents a line with a slope of 1/2 and a y-intercept of 2. When x=2, plugging it into the equation gives y=1/2(2) + 2 = 1 + 2 = 3, which matches the y-coordinate of (2,3). Similarly, when x=-2, plugging it into the equation gives y=1/2(-2) + 2 = -1 + 2 = 1, which matches the y-coordinate of (-2,1). Therefore, the equation y=1/2x + 2 is the correct equation for the line passing through the given points.

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  • 14. 

    Dua garis akan saling tegak lurus jika ...

    • A1.a2+b1.b2 = 0

    • A1.a2=0

    • A1/a2 = b1/b2

    • B1.b2=0

    Correct Answer
    A. A1.a2+b1.b2 = 0
    Explanation
    The correct answer is a1.a2+b1.b2 = 0. This equation represents the condition for two lines to be perpendicular to each other. The dot product of the direction vectors of the two lines, a1 and a2, plus the dot product of the direction vectors of the perpendicular lines, b1 and b2, must equal zero. This means that the angles between the lines are 90 degrees, indicating perpendicularity.

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  • 15. 

    Lukis persamaan garis yang melalui ttitik 1,4 dengan gradien -2

    • Y=-x+6

    • Y=-2x

    • Y=-2x+6

    • Y= 2x+4

    Correct Answer
    A. Y=-2x+6
    Explanation
    The correct answer is y=-2x+6. This equation represents a line with a gradient of -2, passing through the point (1,4). The general form of a linear equation is y = mx + c, where m is the gradient and c is the y-intercept. By substituting the given values, we can determine that the y-intercept is 6. Therefore, the equation of the line is y = -2x + 6.

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  • Current Version
  • Jul 22, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 12, 2012
    Quiz Created by
    Dadisupriadi
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