# Slope

## Who invented Slope?

Rene Descartes created the formula for finding the slope of a line in the early 1600s, using slope-intercept to make a grid. Slope is used for many things. Its often used in the world. To build houses, even to see how tall a tree is.

## What is the formula for Slope?

There is many different types of Slope. From positive to negative lines. If you have a negative line your slope is most likely going to be negative, the same goes for positive. You have many different steps into finding slope.
Slope-Intercept Form y=mx+b

## Here's a problem explained for you

so u have 5y+23=83 first, subtract 23 from both sides, because you have to do the inverse then u have 5y=60 then you divide by 5 on both sides, because you have to do the inverse of multiplication so you get y=12
Finding the Slope Given 2 Points
Slope is finding the rate of change in a number set or graph.  A higher slope value indicates a steeper incline. Slope is normally described by the ratio of the "rise" divided by the "run" between two points on a line. The slope of a line is defined as the rise over the run, m = Δy/Δx.

## Resources!

Pictures.http://en.wikipedia.org/wiki/Slope
www.purplemath.com/modules/slope.htm
www.math.com/school/subject2/lessons/S2U4L2GL.html
www.mathwarehouse.com/algebra/linear.../slope-of-a-line.php