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Question 1018039: Hello there, I have a quiz tomorrow and I was wondering if you could help me find the x and y intercepts of a function. (Like written in f(x) style) All the tutorials I found online only deal with the equation if it is in a y = mx+b form, but I can't figure out how to how to do it if it is in something like a f(x) = 3x + 3 (just an example). Would I just treat the f(x) like y or would I do something else? Thank you in Advance
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39616)   (Show Source):
You can put this solution on YOUR website! The symbol, f(x) takes the place of y. This does not change anything. f(x) can stand for one linear function, and h(x) can stand for a different linear function, as can g(x), or any name you have. The different names will represent correspondingly different lines.
Answer by ikleyn(52775)  (Show Source):
You can put this solution on YOUR website! .
Hello there, I have a quiz tomorrow and I was wondering if you could help me find the x and y intercepts of a function. (Like written in f(x) style) All the tutorials I found online only deal with the equation if it is in a y = mx+b form, but I can't figure out how to how to do it if it is in something like a f(x) = 3x + 3 (just an example). Would I just treat the f(x) like y or would I do something else? Thank you in Advance
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If you are given a function y = f(x)
(where f(x) can be linear function, quadratic function, polynomial function, rational function, doesn't matter)
and if you are asked to find x-intercep or y-intercept, then
1. y-intercept is the value f(0).
To get this value, simply substitute x=0 into f(x).
2. x-intercept is the root of the equation f(x) = 0.
To get this value, you need to solve this equation.
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