Question

Which ordered pair is the solution of the equation y=5x+3?
(3,18)
(3,0)

Answer 1

Neither of the ordered pairs (3,18) or (3,0) are solutions of the equation y=5x+3.

To check, substitute the x-values from each ordered pair into the equation and see if the resulting y-value matches the given pair:

For the ordered pair (3,18):
y = 5x + 3
18 = 5(3) + 3
18 = 15 + 3
18 = 18

For the ordered pair (3,0):
y = 5x + 3
0 = 5(3) + 3
0 = 15 + 3
0 = 18

Neither of these equations are true, so neither of the ordered pairs are solutions to the equation.