How can we find the area of figures using another figure

The simplest (and most commonly used) area calculations are for squares and rectangles. To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.

y=-5x

Step-by-step explanation:

y-y1 = m(x-x1)

m= -5 and (5,-6) --> 5 is x1 and -6 is y1

Put the numbers in the formula

'simplify'

Subtract 6 from both sides

If you want to check your work to make sure it goes through the point (5,-6), I recommend using GeoGebra. It is free and you can use it on your computer or your mobile device