(-12,16) and (-4,-2)find the slope

It's -9/4 or -2 1/4. please mark me brainliest <3

Step-by-step explanation:

1) label x1, y1, x2, and y2.

x1     y1       x2 y2

(-12, 16)     (-4,-2)

2) Remember the formula is y2-y1

                                                x2-x1

3) substitute

-2-16

-4-(-12)

4) two minuses (negatives) is a positive (+)

so,

-2-16             -18

=      

-4+12               8

5) simplify

-18 divided by 2          -9

                         =      or -2 1/4

  8 divided by 2             4

answer: 4

step-by-step explanation:

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles