Question

Determine the value of A the line defined by

Ax - 4y - 12 = 0
passes through the point (8,3)

Answer 1

A=3

Explanation:

Replace (x,y) with (8,3) in Ax-4y-12=0:

A(8)-4(3)-12=0

Now solve for A

Simplify - perform some multiplication and use commutative property of multiplication

8A-12-12=0

Simplify- combine like terns

8A-24=0

Add 24 on both sides

8A=24

Divide both sides by 8

A=24/8=3