For which of the following functions is the average rate of change from x = 1 to x = 4 equal to 3? select all that apply.
a. ƒ( x) = x 2 – 2 x
b. ƒ( x) = x 2
c. ƒ( x) = 3 x – 5
d. ƒ( x) = 1 + 3 x
e. ƒ( x) = 9 – 3 x

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.