Question

MEDAL & FAN ANYBODY?
Use the function x2 + 2x – 15 = 0
The zeroes of the function are:
a. 0 and 0
b. 3 and 5
c. 3 and –5
d. Undefined

Answer 1

you can plug in the given values of x and y into the equation and see which ones fit

Answer 2

d

Answer 3

no

Answer 4

its not a because
0^2 + 2(0) - 15 = -15

Answer 5

its either b or c

Answer 6

c

Answer 7

i think

Answer 8

3^ 2 + 2(3) - 15
=9 + 6 - 15 = 0

now try substituting -5

Answer 9

(-5)^2 + 2(-5) - 15 = ?