CPM Homework Help : PC3 Problem 10-89

Graph each of the following functions.

$y = \log_2(x + 3) + 4$
Step 1(a):
$2^{y-4}-3=x$
Step 2(a):
Make a table and choose $y$ -values near $y = 4$ . Compute the corresponding $x$ -values.

$y = \frac { 1 } { 5 }(7)^{x−3}$
Hint (b):
This is an exponential growth function that is vertically 'stretched' by a factor of $1/5$ and shifted $3$ units right.
More Help (b):
To locate specific points on the curve, compute the $y$ -values when $x = 2, 3,$ and $4$ .