Last two!
1.Calculate the average rate of change for the given function, from x = 2 to x = 7.
x ,f(x)
−2, 0
2 ,15
7 ,30
negative one third

one third

−3

3
2. The function for the cost of materials to make a muffin is f(x) = Three fourths x + 3, where x is the number of muffins. The function for the selling price of those muffins is g(f(x)), where g(x) = 3x + 4. Find the selling price of 20 muffins.

Question

Last two!
1.Calculate the average rate of change for the given function, from x = 2 to x = 7.
x ,f(x) 
−2, 0 
2 ,15 
7 ,30 
negative one third 

 one third 

 −3 

 3 
2. The function for the cost of materials to make a muffin is f(x) =  Three fourths x + 3, where x is the number of muffins. The function for the selling price of those muffins is g(f(x)), where g(x) = 3x + 4. Find the selling price of 20 muffins.

anonymous · Answer

18 

 49 

 51 

 58

anonymous · Answer

Just in case anyone's confused... The answer choices for number one is -1/3 ,1/3, -3, and 3

anonymous · Answer

1. one third i think 
the second one i got 960

anonymous · Answer

hmm...well I'm just going to take an educated guess...Thanks for the help ^-^

anonymous · Answer

np