CPM Homework Help : GB8I Problem 9-20

Use the graph at right to write an equation in $y = ab^x$ form.

Hint:

The $a$ value is the initial value or $y$ -intercept.

More Help:

The $b$ value is the multiplier. Think of the two given points in a table like you used in finding geometric sequences. What number would you multiply $3$ by to get $1$ ?

Decreasing exponential curve, passing through the points (0, comma 3), & (1, comma 1), with a slope triangle between those 2 points, horizontal leg labeled, + 1, vertical leg labeled, negative 2.