Equation Quizzes & Trivia

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Equation Questions & Answers

What is 29.2 - w if w=7.8?
21.4 is what i got but it says the answer is 22.4?
What is the positive value of k if difference of roots of the quadratic equation x2 – kx + 12 = 0 is 1?
-7,because it has been verified also: x2-(-7)x + 12=0 x2+7x +12=0 x2+4x +3x +12=0 x(x+4)+3(x+4)=0 (x+3)(x+4)=0 now,difference= -3-(-4)= -3+4=1 hence,verified
What is the equation of a line with a slope of 8 and a y-intercept of (0, -2)?
The answer is y= 8 x- 2 this how it is kTake x and y as the coordinates of the other line and cross multiple with 8 then leave the answer in form of y= mx + c
A/(2c) is equivalent to a/2c in this problem since the denominator is a product of 2 and c and not the sum or difference of 2 and c