Question

For each ordered pair, determine whether it is a solution to 5x +2y = -1.

Answer 1

for ( 1, -3)

$\begin{gathered} 5(1)+2(-3)=-1 \\ 5+(-6)=-1 \\ 5-6=-1 \\ -1=-1 \end{gathered}$

answer: yes

for (-3, 7)

$\begin{gathered} 5(-3)+2(7)=-1 \\ -15+14=-1 \\ -1=-1 \end{gathered}$

answer: yes

for ( -4, -6)

$\begin{gathered} 5(-4)+2(-6)=-1 \\ -20+(-12)=-1 \\ -20-12=-1 \\ -32\ne-1 \end{gathered}$

answer: No

for (2, 8)

$\begin{gathered} 5(2)+2(8)=-1 \\ 10+16=-1 \\ 26\ne-1 \end{gathered}$

answer: No