Question

The point (21,32) is on the line with the slope 1.5
A. Find the equation of the line
B. Find the coordinates of another point on the line

Answer 1

y - y₁ = m(x - x₁)
y - 32 = 1.5(x - 21)
y - 32 = 1.5(x) - 1.5(21)
y - 32 = 1.5x - 31.5
  + 32           + 32
       y = 1.5x + 0.5