Question

A line that includes the points (-2, c) and (-1, 10) has a slope of 2. What is
the value of c?

Answer 1

8

Explanation:

• m = (Y2-Y1) ÷ (X2- X1)
• 2 = (10-c) ÷ (-1-(-2))
• 2 = (10-c) ÷( 1)
• 2= 10-c
• c = 10-2
• c= 8

Answer 2

(-2,c) and (-1,10)

10-c

-1--2

10-c

1

We need the fraction to be 2, or 2/1. The bottom number is 1, so we technically already have the answer. But we still need to plug in a number for c. To get 2, we need to subtract 8 from 10.

So c is 8.

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hope it helps

sorry my work was a mess