Steps to find the equation 1. Find the slope 2. Insert slope into the general equation 3. Find y-intercept 4. Insert -intercept into the equation found in step 2 And you get the equation of the line
---------------------------------------------------------------------------------------------- Find the slope ---------------------------------------------------------------------------------------------- 2y - x = 4
---------------------------------------------------------------------------------------------- Rewrite into the form y = mx + c ---------------------------------------------------------------------------------------------- 2y = x + 4 y = 1/2 x + 2
---------------------------------------------------------------------------------------------- Insert slope into the equation ---------------------------------------------------------------------------------------------- y = mx + c y = -2x + c
---------------------------------------------------------------------------------------------- Find y-intercept ---------------------------------------------------------------------------------------------- y = -2x + c At point (1, 2) 2 = -2(1) + c 2 = -2 + c c = 4
---------------------------------------------------------------------------------------------- Insert y-intercept into the equation y = -2x + c ---------------------------------------------------------------------------------------------- y = -2x + 4
---------------------------------------------------------------------------------------------- Answer: y = -2x + 4 ----------------------------------------------------------------------------------------------
