| Slope Intercept Form:
y = mx +b Every Srait line can be represented by the equation : y = mx + b. The coordinates of every point on the line will solve the equation if you substitute them in the equation for x and y. The slope m of the line represents the stepness. It can be represented by m = y2 - y1/ x2 - x1. Ex: y = 3/4x + 5. The 5 is plotted on the y plane. the m is 3/4. The numarator is the rise from the plotted point on the y plan. The denomater is the run. When the points are plotted, it will give you the slope of the line. |
| y - y1 = m(x - x1) |
| Standard Form: x +
y = m+ b In this form the x can not be a negative number. To change the form into slope intercept form, just think of it as a literal equation because thats what it is. All you do is subtract the x on both sides to get y = m(-x) + b. |
