SOLUTION: Please help me. I have tried this problem several times but my answer for (a)is incorrect. Thanks in advance and show all work Given f(w)=−w^3+10, find the following:

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please help me. I have tried this problem several times but my answer for (a)is incorrect. Thanks in advance and show all work Given f(w)=−w^3+10, find the following:       Log On


   

Question 1021751: Please help me. I have tried this problem several times but my answer for (a)is incorrect. Thanks in advance and show all work

Given f(w)=−w^3+10, find the following:
a) w -intercept(s) =
b) f(w)-intercept =
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
To find the w-intercept, set f(w)=0 and solve for w:
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f%28w%29=-w%5E3%2B10
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0=-w%5E3%2B10
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-10=-w%5E3
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10=w%5E3
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root%283%2C10%29=w
.
The w-intercept is (2.154,0)
.
To find f(w) intercept, set w=0 and solve for f(w):
.
f%28w%29=-w%5E3%2B10
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f%28w%29=-%280%5E3%29%2B10
.
f%28w%29=10
.
The f(w)-intercept is at (0,10)
.
GRAPH:
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+graph%28+800%2C+800%2C+-15%2C+15%2C+-15%2C+15%2C+-x%5E3%2B10%29+