Unit Test — Unit test Answers

25 verified answers

What are the values of a, b, and c in the quadratic equation 0 = 5x – 4x2 – 2?

a = 5, b = 4, c = 2

a = 5, b = –4, c = –2

a = –4, b = 5, c = –2

a = 4, b = –5, c = –2

What are the solutions to x2 + 8x + 7 = 0?

x = –8 and x = –7

x = –7 and x = –1

x = 1 and x = 7

x = 7 and x = 8

Which is a zero of the quadratic function f(x) = 9x2 – 54x – 19?

x =

x = 3

x = 6

x = 9

What are the solution(s) of the quadratic equation 98 – x2 = 0?

x =

no real solution

A function g(x) has x-intercepts at (, 0) and (6, 0). Which could be g(x)?

g(x) = 2(x + 1)(x + 6)

g(x) = (x – 6)(2x – 1)

g(x) = 2(x – 2)(x – 6)

g(x) = (x + 6)(x + 2)

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