Which point lies on the line described by the equation below y + 8 = 4(x  5)?
Solve the equation for y, and then substitute a number in for x, to find the ycoordinate with that particular xcoordinate.
y + 8 = 4(x  5) y + 8 = 4x  20 {used distributive property} y = 4x  28 {subtracted 8 from each side} Substitute any number in for x, such as 2: y = 4x  28 y = 4(2)  28 {substituted 2 for x} y = 8  28 {multiplied 4 by 2} y = 20 {subtracted} (2,20) is a point that lies on the line described by the equation. Ask Algebra House
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