Please help and clarify functions

Algebra
Tutor: None Selected Time limit: 1 Day

A function is given. Determine the average rate of change of the function between the given values of the variable.

1)   h(t) = t2 + 5t;    t = −1, t = 2

2)   af(z) = 5 − 4z2;    z = −2, z = 0

3)   f(x) = x3 − 5x2;    x = 0, x = 10

4)   f(x) = x + x4;    x = −3, x = 5

5)   f(x) = 5x2;    x = 3, x = 3 + h

6)   f(x) = 3 − x2;    x = 6, x = 6 + h

Feb 15th, 2015

I'm not absolute about this but i think your just supposed to substitute.For example....

h(t)=t2+5t turns into -1=-1(2)+5(2) simplifies to -1=-2+10 =-1=8

srry if incorrect.

Feb 16th, 2015

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Feb 15th, 2015
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Feb 15th, 2015
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