A+ Answers

Question 1

Identify the zeros of the function g(x) = x2 − 6x + 8.

 2, 4

 2, −4

 −2, −4

 −2, 4

  Question 2

Identify the roots of the equation x2 + 16x + 64 = 0 by factoring.

 x = 4

 x = −4

 x = −8

 x = 8

  Question 3

Identify the roots of the equation x2 = 9x − 14 by factoring.

 x = 2 or x = −7

 x = −2 or x = 7

 x = −2 or x = −7

 x = 2 or x = 7

  Question 4

Identify the quadratic function that is in standard form and has zeros 4 and −7.

f(x) = x2 + 3x + 28

f(x) = x2 + 3x − 28

f(x) = x2 − 11x + 28

f(x) = x2 + 11x − 28

  Question 5

A golf ball is hit from ground level with an initial vertical velocity of 64 ft/s. At what time will the ball hit the ground?

 after 6 s

 after 5 s

after 3 s

after 4 s