Question

Yana needs to create a function of the form f(x) = 5x2 + bx – 20 with integer x-intercepts. Which statement describes the possible values of b that Yana could use?

Yana can use any multiple of 5.
Yana must use b = –100.
Yana can use factors of –4 that have a sum of 0.
Yana can use a value of b that belongs to the set {–15, 0, 15}.

Answer 1

@AlexandervonHumboldt2

Answer 2

@triciaal

Answer 3

yeah

Answer 4

with integer x-intercepts. means y = 0

Answer 5

@AlexandervonHumboldt2 Help

Answer 6

let me think

Answer 7

@triciaal C?

Answer 8

-100

Answer 9

B