How to find the y-intercept given $y= (1/2)^x - 4$ ?

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Answer 1 · 2015-05-05T21:32:51

The y-intercept is the value of $y$ at the point on the function where $x=0$

$y=(1/2)^x-4$ with $x=0$

$y=1 -4 = -3$

The y-intercept is at $(-3)$

Answer 2 · 2015-05-05T21:33:26

Set $x=0$ in your function and remember that $a^0=1$ .

How to find the y-intercept given y= (1/2)^x - 4y= (1/2)^x - 4?