Question

What are the x-coordinates of the solutions? Choose all that apply.

a. -2
b. 1
c. -1
d. 0

Answer 1

a. -2

c. -1

Explanation:

these are the only values for x, where the 2 equations deliver the same y value.

in case of a. y = -2×-2 - 1 = 4 - 1 = 3

and y = 3¹ = 3

c. y = -2×-1 - 1 = 2 - 1 = 1

y = 3⁰ = 1