72y2-98

determine the x-y-intercepts of the graph of each function y=x2-5xt4

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Originally Posted by Datsybb55

72y2-98

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I assume this is

First, note that if you divide 72 and 98 by 2, you have two perfect squares.

So, factor out a 2:



Now, see inside the parentheses? It is the difference of two squares.

I assume you know that factorization? It is,

Can you finish now? Let me know if you remain stuck.

Quote:

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Originally Posted by Datsybb55

determine the x-y-intercepts of the graph of each function y=x2-5xt4

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What is this? Please do a preview before you post, so that you know it is displaying correctly or that you typed it correctly.

Is this it:



If so, to find the x intercepts, then y must be equal to 0. Set y=o and solve for x bt factoring or using the quadratic formula.

For that matter, just graph it and look at the intercepts.

To find the y intercepts, set x=0.s an aside, just use ^ when you want an exponent.

Just writing x2 looks like you want to multiply x by 2.