5 Questions | Total Attempts: 47  Settings  Complete the following questions

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• 1.
Solve (x – 2)(x + 7) = 0
• A.

X = –2, 7

• B.

X = 2, 7

• C.

X = 2, –7

• D.

X = –2, –7

• 2.
A soccer ball is kicked into the air.  Its path is modelled by the function h(t) = –5t2 + 15t, where h(t) is the height in metres and t is the time in seconds.  When will the soccer ball hit the ground?
• A.

0s

• B.

3s

• C.

5s

• D.

15s

• 3.
Solve by factoring  x2 = 12x
• A.

X = –12, 0

• B.

X = 0, –12

• C.

X = –2, 0

• D.

X = 0, 12

• 4.
A roofer throws a group of shingles into the trash bin on the ground below.  The height of the shingles can be modelled by the function h(t) = –5t2 + 11t + 12, where h(t) is the height in metres, and t is the time in seconds.  How long will it take the shingles to hit the bottom of the trash bin?
• A.

–4/5s

• B.

1s

• C.

3s

• D.

12s

• 5.
For which quadratic equation is x = 2 a root of the equation?
• A.

X^2 + 2x – 8

• B.

X^2 + x – 2

• C.

X^2 + 3x +2

• D.

2x^2 – 7x – 4