Question

9. plsss help, will give brianlist

Answer 1

`1. \: \: \: \: (1)/(5) \\ 2. \: \: \: \: - (3)/(2) \\ 3. \: \: \: \: (1)/(2)`

Explanation:

1. In the first diagram we simply count the number of squares along the rise and the number of squares along the run as slope equals rise/run

2. we use the slope formula

`(y2 - y1)/(x2 - x1) = ( - 2 - 1)/( 1- ( - 1)) = ( - 3)/(2) = - (3)/(2)`

3. pick any two points and apply the slope formula again

`( - 1. \: \: 1) \: and \: (3. \: \: 3) \\ (3 - 1)/(3 - ( - 1)) = (2)/(4) = (1)/(2)`