There goes my hopes for Virtuoso rank ...

What are the zeros of the function y = x2 + 10x - 171, and why?

A) The zeros are x = - 19 and x = 9 because in factored form, the function is y = (x - 19) (x + 9)

B) The zeros are x = - 19 and x = 9 because in factored form, the function is y = (x + 19) (x - 9).

C) The zeros are x = 19 and x = - 9 because in factored form, the function is y = (x - 19) (x + 9).

D) The zeros are x = 19 and x = - 9 because in factored form, the function is y = (x + 19) (x - 9).

Question

Mathematics

Sidney Finley

1 March, 18:30

There goes my hopes for Virtuoso rank ...

What are the zeros of the function y = x2 + 10x - 171, and why?

A) The zeros are x = - 19 and x = 9 because in factored form, the function is y = (x - 19) (x + 9)

B) The zeros are x = - 19 and x = 9 because in factored form, the function is y = (x + 19) (x - 9).

C) The zeros are x = 19 and x = - 9 because in factored form, the function is y = (x - 19) (x + 9).

D) The zeros are x = 19 and x = - 9 because in factored form, the function is y = (x + 19) (x - 9).

+2

Answers (1)

Know the Answer?

Kenneth Fuller · Answer 1

Y = x^2 + 10x - 171

y = (x - 9) (x + 19)

x - 9 = 0 x + 19 = 0

x = 9 x = - 19

Answer B covers all requirements ... the factored form is

y = (x + 19) (x - 9)

and the zeros are - 19 and 9