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OpenStudy (mathmath333):
Find the range of the following function
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OpenStudy (mathmath333):
\(\large \color{black}{\begin{align}f(x)=2-3x,\ x\in \mathbb{R},\ x>0 \hspace{.33em}\\~\\
\end{align}}\)
geerky42 (geerky42):
Can you graph 2-3x?
OpenStudy (mathmath333):
i cant use graph paper, i have to use pen and paper
OpenStudy (acxbox22):
you can still create a simple graph
geerky42 (geerky42):
^
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geerky42 (geerky42):
|dw:1433027408780:dw|
geerky42 (geerky42):
then label y-intercept and x-intercept, so you can have good idea of what graph would look like.
OpenStudy (ikram002p):
:O
OpenStudy (mathmath333):
|dw:1433027676752:dw|
OpenStudy (zzr0ck3r):
You could also find the domain of the inverse with the given restrictions.
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OpenStudy (mathmath333):
what to do next @geerky42 after graphing
OpenStudy (acxbox22):
well the line crosses the y axis at (0,4)
and it asks for range when x is greater than 0
and range means all the y-values the graph goes through
geerky42 (geerky42):
Good, now what would graph look like with restriction of x>0?
Once you figured that part, you should be able to tell what range is.
geerky42 (geerky42):
|dw:1433028061222:dw|
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