Question

What is the slope of the line shown in the graph?

−3 over 2
−1 over 2
3 over 2
Unidentified

Answer 1

y= f(x)= ax+b
when x= -1, y= -1
-1= -a+b   | * ( -1)

when x= -3, y=2
2= -3a+b

-3a+b= 2
a -  b=  1
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2a=3
a=3/2   is the slope