Approximate the solution to the graphed system. explain how you got your answer.

What is the logarithmic function modeled by the following table? x f(x) 9 2 27 3 81 4

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)