y-3=8(x-27)
Step-by-step explanation:
1. Find the slope
The equation to find slope is (y2-y1)/(x2-x1)
Substitute:
(27-(-61))/(3-(-8)
= (27+61)/(3+8)
=88/11
=8
2. Use a formula to finish the problem
Use the formula*
y - y1= m(x-x1)
Substitute:
y-3=8(x-27)
*An explanation of the formula [y - y1= m(x-x1)]and how to use it:
This formula is used in order to figure out the equation of a line. The equation is the "y=mx+b" format.
y = just the y used above
m = The slope of the line (in this case, 8)
x = The x used above
b = Whatever else is added to mx in order to make y
Next, look at the formula used to find the equation of a line.
y - y1= m(x-x1)
y = the y used above
y1= one of the y coordinates. the "1" part is added so there is no confusion between the actual coordinate and the y that is used as a placeholder. Also, you can use the y from any coordinate. It is just so there is no confusion
m = the slope.
x = the x used above
x1 = the x coordinate that goes with the y one. the "1" part is added so there is no confusion between the actual coordinate and the y that is used as a placeholder. Note that the "one" is the same. When you find the slope of a line, you always line it up so the "y1" is above the "x1" This is the same thing.
When choosing one of the points, choose the easiest set to simplify.
