3 years ago

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

1 answer:

7 0

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
--------------
2a=3
a=3/2 is the slope

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