Question

Find the slope, if it exists, of the line containing the par of points.
(-7.8,18.3) and (-7.4,2.7)

Answer 1

\[\text{slope}=\frac{y_2-y_1}{x_2-x_1}\]

Answer 2

I did that , still had a hard time simplifying it.

Answer 3

An ordered pair contains the x and y coordinates for a point in 2space

\[(x_1, y_1) = (-7.8, 18.3)\]\[(x_2, y_2) = (-7.4, 2.7)\]

Answer 4

\[(2.7 -18.3)/(-7.4-(-7.8)\]

Answer 5

-15.6/.4 = -39

Answer 6

I had the top answer right, had a hard time at the bottom

Answer 7

remember that subtracting a negative is adding a positive

Answer 8

Ooooh, okay got it. Thanks :)

Answer 9

so it's really -7.4 + 7.8 which is 7.8 - 7.4