CPM Homework Banner

Home > CCA > Chapter 10 > Lesson 10.2.1 > Problem 10-33

10-33.

Find the equation of the exponential function y = abx passing through the points (2, 3.84) and (3, 3.072). 10-33 HW eTool (Desmos). Homework Help ✎

Substitute the points into the equation.
3.84 = ab2
3.072 = ab3

Solve 3.84 = ab2 for a, then substitute that into the other equation and solve for b.

Once you have solved for b, substitute that value back into one of the original equations and solve for a.

Check your work using the eTool below. Does your equation pass through the two points plotted on the graph?
Click on the link at right for the full eTool version: CCA 10-33 HW eTool