Desmos Graphing Calculator

CalcReferenceCopy

Math·Advanced Math·Nonlinear functions

easy

$x$	$y$
$1$	$22$
$2$	$36$
$3$	$a$

The table shows three values of $x$ and their corresponding values of $y$ for the equation $y=7(2{)}^x+8$. In the table, $a$ is a constant. What is the value of $a$?

A

120

B

64

C

56

D

50