Question

Select all the ordered pairs that are solutions to the equation 5x + 2y = -8

Question options:

(4, -14)


(0, -4)


(-4, 0)


(1, -2)


(−85,0)

Answer 1

The answer to your question is only (0, -4) is a solution to the equation.

Explanation:

Equation

5x + 2y = - 8

Process

1) Substitute all the possible solutions in the equations to find the answer

a) (4, 14)

5(4) + 2(14) = - 8

20 + 28 = -8

48 = -8 This is not a solution

b)

5(0) + 2(-4) = - 8

0 - 8 = -8 This is a solution

c)

5(-4) + 2(0) = - 8

-20 + 0 = -8

-20 = -8 This is not a solution

d)

5(1) + 2(-2) = - 8

5 + -4 = 8

1 = 8 This is not a solution

e)

5(-85) + 2(0) = - 8

-425 + 0 = -8

-425 = -8 This is not a solution