What is the $y$ $y$ -intercept of $y = 2.1 {(.15)}^{x}$ $y=2.1(.15)^x$ ?

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What is the $y$ $y$ -intercept of $y = 2.1 {(.15)}^{x}$ $y=2.1(.15)^x$ ?

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Answer 1 · 2018-08-14T13:15:26

$y-intercept = 2.1$ $"y-intercept "=2.1$

Explanation:

$let x= 0 ,to find y-intercept$ $"let x= 0 ,to find y-intercept"$

graph{2.1(0.15)^x [-10, 10, -5, 5]}
$y = 2.1 {(0.15)}^{0} = 2.1 \times 1 = 2.1 \leftarrow y-intercept$ $y=2.1(0.15)^0=2.1xx1=2.1larrcolor(red)"y-intercept"$

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What is the $y$ $y$ -intercept of $y = 2.1 {(.15)}^{x}$ $y=2.1(.15)^x$ ?

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What is the $y$ $y$ -intercept of $y = 2.1 {(.15)}^{x}$ $y=2.1(.15)^x$ ?