4/4/2016
CPM eBooks ­ CC Algebra
7­87. Find a possible exponential function in y =a ∙ bx form that represents each situation described
below. Homework Help ✎
a. Has an initial value of 2 and passes through the point (3, 128).
b. Passes through the points (0, 4) and (2, 1).
7­88. Solve the following systems of equations. In other words, find values of a and b that make each
system true. Be sure to show your work or explain your thinking clearly. Homework Help ✎
a. 3 = a ∙ b0
75 = a ∙ b2
b. 18 = a ∙ b2
54 = a ∙ b3
7­89. Evaluate each expression below. Homework Help ✎
a. b. c. d. 7­90. Rewrite 163/4 in as many different ways as you can. Homework Help ✎
7­91. Find the equation of the line passing through the points (7, 16) and (2, −4). Then state the slope
and x­ and y­intercepts. Explain how you found them. 7­91 HW eTool(Desmos). Homework Help ✎
http://textbooks.cpm.org/bookdb.php?title=cca&name=7.2.1&type=lesson#7­87
1/1