Question

Find the slope of the line through each pair of points.- (19,-16), (-7,-15)- (-4,7), (-6,-4)- (17,-13), (17,8)- (19,3), (20,3)

Answer 1

m = -1/26

m = 11/2

m = undefined

Step-by-step explanation:

Slope formula:

`m\text{ = }(y_2-y_1)/(x_2-x_1)`

a) (19,-16), (-7,-15) = (x1, y1, (x2, y2)

`\begin{gathered} m\text{ = }\frac{-15-(-16)_{}}{-7-19}\text{ = }(-15+16)/(-26) \\ m\text{ =}(1)/(-26)\text{ = -1/26} \end{gathered}`

b) (-4,7), (-6,-4) = (x1, y1, (x2, y2)

`\begin{gathered} m\text{ = }\frac{-4-7_{}}{-6-(-4)}\text{ = }(-4-7)/(-6+4) \\ m\text{ =}(-11)/(-2)\text{ = }(11)/(2) \end{gathered}`

c) (17,-13), (17,8) = (x1, y1, (x2, y2)

You can use this solution to solve the remaining one