Help with question 4
Three over Four. Y2 - y1 over x2 - X1. Which would be the same as 2+1 over 1+4 or 3 over 4. A negative minus a negative is addition on both the top and the bottom
First, turn this into a simultaneous linear equation. 1 + b = 2-3 + b = -1Now solve it.b = 1/4.y = x + 1/4.As you can see, slope is 1 but I gave you the equation as well. Have a nice day!