Nonlinear Functions

SAT Math· difficulty 4/5

y = 4 \cdot 0.5^x

A
$y-intercept 4; decreasing$
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B
$y-intercept 4; increasing$
C
$y-intercept 0.5; increasing$
D
$y-intercept 0; decreasing$

Explanation

y(0) = 4

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