Question

Determine if the given ordered pairs are solution of x+ 4y = 7.

1. (3,1)
Solutions:​

Answer 1

(3, 1) is a solution

Explanation:

If the coordinates are solutions of the equation, you should be able to solve the equation to get the y-value when you input the x-value;

So in the case of (3, 1), input x = 3 and solve for y:
(3) + 4y = 7

4y = 4

y = 1

Solving the equation gives y = 1, which is the same as the given coordinates, hence it is a solution or, in other words, this point falls on the line graphed by the equation

Answer 2

True

Explanation:

3 X 1 = 3

4 X 1 = 4

3 + 4 = 7

Hope this helps!