Y = mx + b, m is the slope and b is the vertical intercept. When given 2 points and the slope, enter the info into the equation, 3 = 2(1) + b and solve for b. 1×2=1. divide two from both sides cancelling out two and dividing 2 from 3. So then b = 3/2. Re-enter the info back into the equation. y = 2x + 3/2. Some assignments may ask you to put into a decimal. Otherwise keep it as a fraction
Y = -3/4x - 2 Add 2 and subtract y -3/4x - y = 2 No fractions or negative Multiply all by 4 -3x - 4y = 8 Now multiply all by (-) Solution: 3x + 4y = -8
