Negative Correlation

Negative correlation is a situation when one thing decreases and the other increases. For example,the longer you're at the mall,the less money you have would be a negative correlation.

Negative Correlation

Negative Correlation

Parallel & Perpendicular Lines

With parallel lines, the slope will be the same slope,but different  y-intercepts.

With perpendicular lines,the have reciprocal slopes. As you can see,they turned the reciprocal negative.

How to Solve an equation

Say you have two points. Let's say they're (1,8). The equation is m/slope=y2-y1

                                                                                                         x2-x1

So it would be 2-1

                     16-8

It equals 1/8