For each ordered pair, determine whether it is a solution to 7x+3y=2.

Question

(2,-4)

(-1,3)

(0,-8)

(5,2)

Answer 1

Hi. If the coordinates are substituted into the equation so that the equation becomes equal on both sides, then those coordinates are solutions. The final answer must be 2 to be a solution.

So 7(2)+3(-4)=14-12=2. Solution

7(-1)+3(3)=-7+9=2. Solution

7(0)+3(-8)=0-24=-24. No solution

7(5)+3(2)=35+6=41. No solution.

Answer 2

Follow this example:

7(2) +3(-4) = 2 True or False?