Question

The math teacher asked his students to determine a solution for 1.5x−2y=8
. Which solution below is the correct one?(1 point)

Sam believes (−4,−7)
is a solution.

Peter believes (−4,7)
is a solution.

Mary believes (4,−7)
is a solution.

Fiona believes (4,7)
is a solution.

Answer 1

Sam is correct: substitute (x,y)=(-4,-7):

1.5(−4) − 2(−7) = −6 + 14 = 8

So (−4, −7) satisfies the equation.