Question

Determine which ordered pair is a solution of Y=2x+7

a. (–4, –1)
b. (–5, 3)
c. (2, 3)
d. (1, 3)

Answer 1

the answer is a. (-4, -1).

Answer 2

Each ordered pair represents (x,y), so to find the correct answer simply plug in the values of x and y into the formula and see if the equation holds.

Try (-4, -1):

`y=2x+7`

`-1=2(-4) + 7`

`-1 = -8+7`

`-1=-1` → and that is true, so option (a) is the answer.