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OpenStudy (anonymous):
find the y-intercepts of f(x)=3e^(-.5x) -9. I really need an explanation on this one
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OpenStudy (agent47):
y-intercept means x=0, so plug in 0 instead of x and solve for y.
OpenStudy (agent47):
f(0)=3*e^(0)-9=3*1-9=-6
OpenStudy (agent47):
point is: (0;-6)
OpenStudy (anonymous):
oh ok thanks. that makes sense now
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