Question

Practice finding the value of slope from tables and graphs.
A 2-column table with 5 rows. Column 1 is labeled x with entries negative 4, negative 2, 0, 2, 4. Column 2 is labeled y with entries 19, 16, 13, 10, 7.

Use the values in the table to determine the slope.

m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction
none
Three-halves
0
Negative three-halves

Answer 1

Pick any two points. Using (-4, 19) and (-2, 16):

m = (16 − 19)/(-2 − (-4)) = −3/2.

So the slope is negative three-halves.