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1. Find the slope of a line that passes through (-2,-3) and (1,1).

2. For the equation-4=8x, what is the constant of variation

3. Suppose y varies directly with x, and y=24 when x=8. What is the value of y when x=10

Respuesta :

eaucy

Answer:

1:

m=4/3

2:

-2

3:

First, you want to set up a proportion.

8/24 = 10/y

Cross multiply to get

240 = 8y, then divide 8 from both sides to get y = 30.

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