Question

The point (5, -1) is solution of equation: y= 2x - 11

True or false

Which ordered pairs are a solution to the equation ?
Y= 8x

(3,-24)
(2,16)
(1,8)
(-16,-2)
(-3,-24)

Answer 1

Let's input the x value (5) and see if the output is correct (-1).

y = 2(5) - 11
y = 10 - 11
y = -1

(5, -1) is a solution to y = 2x - 11.

The only ordered pairs that are a solution to y = 8x are (2, 16), (1, 8), and (-3, -24).

y = 8(2)
y = 16

y = 8(1)
y = 8

y = 8(-3)
y = -24