Question

The graph of y = 7x + 56 passes

through (-5, 7a) in the standard(x, y)
coordinate plane. What is the value of a ?

Answer 1

a = 3

Explanation:

The point (- 5, 7a ) satisfies the equation

Substitute the coordinate points into the equation and solve for a

7a = 7(- 5) + 56 = - 35 + 56 = 21 ( divide both sides by 7 )

a = 3