Algebra
posted by Kuku Monkey .
1. Find the slope of the graph of the linear function f with f(0)=4 and f(3)=13.
I have no idea how to do this.. :(
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Evaluate the function when x=3, x=0, and x= 2.
2. f(x)=1/2x+3
my answers: 1.5, 3, 1
3. h(x)=5.5x+4
my anwers: 20.4, 4, 7
4. g(x)=1/84
my answers: 3.625, 4, 4.25
5. k(x)=144x
my answers: 2, 14, 22
Please check if numbers 25 are correct. Thanks.

on the first.
slope= (f(3)f(0))/(30)
the others are correct, but I would have done 4 in fractions. 
Thanks a lot!! =))

KukuMonkey, double check you work when you work with negative numbers.
2.
f(x)=1/2x+3
f(2)=4
3. h(x)=5.5x+4
my anwers: 20.4, 4, 7
h(3)=20.5
h(0)=4 (OK)
h(2)=7