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Let [tex]$f(x) = -3^x + 2$[/tex].

Find the [tex]$y$[/tex]-intercept and the equation of the asymptote.

[tex]$y$[/tex]-intercept [tex]$=$[/tex] [tex]$\square$[/tex] ; asymptote [tex]$=$[/tex] [tex]$\square$[/tex]


Sagot :

To solve for the [tex]\( y \)[/tex]-intercept and the equation of the asymptote of the function [tex]\( f(x) = -3^x + 2 \)[/tex], follow these steps:

### Finding the [tex]\( y \)[/tex]-Intercept:
1. The [tex]\( y \)[/tex]-intercept occurs where [tex]\( x = 0 \)[/tex].
2. Substitute [tex]\( x = 0 \)[/tex] into the function [tex]\( f(x) = -3^x + 2 \)[/tex]:
[tex]\[ f(0) = -3^0 + 2 \][/tex]
3. Calculate the value:
[tex]\[ 3^0 = 1 \implies -3^0 = -1 \][/tex]
[tex]\[ f(0) = -1 + 2 = 1 \][/tex]
So, the [tex]\( y \)[/tex]-intercept is [tex]\( y = 1 \)[/tex].

### Finding the Asymptote:
1. The asymptote of an exponential function of the form [tex]\( f(x) = -a^x + b \)[/tex] will be [tex]\( y = b \)[/tex].
2. Here, the function is [tex]\( f(x) = -3^x + 2 \)[/tex], so [tex]\( b = 2 \)[/tex].

Therefore, the asymptote is [tex]\( y = 2 \)[/tex].

### Final Answer:
- [tex]\( y \)[/tex]-intercept [tex]\( = 1 \)[/tex]
- Equation of the asymptote is [tex]\( y = 2 \)[/tex]
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