I have a math problem I need help with??
I am in an elementary algebra class at my school and I am doin a practice final..I have a lot of problems If you can help Please add me on messenger…
find x & Y intercepts
9x-5y=30
I got (3.33,-6) for my answer but the answer sheet the professor gave says (0,-6)
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Now is the time to learn: Answer sheets aren’t always right.
In this case, you are.
You would write the x-intercept as Y=-6, or (0,-6)
the y-intercept as X = 3.33, or (3.33, 0)
There can only be one x and y intercept in this problem, as the equation is that of a straight line.
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Think about it for a second: The y intercept is the place where the line crosses the y axis. When does the line cross the y axis? When x = 0. And the x intercept is the place where the line crosses the x axis which happens when y = 0.
So if you plug in x = 0 into the equation you get 9 * 0 – 5y = 30 so -5y = 30 and therefore y = -6. So the y intercept is (0, -6). Now try and figure out the x interecept
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both answers should have a 0 somewhere, set y = 0 so your answer will be (x, 0) then set x to 0 and your answer will be (0, y)
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just try plugging both sets of numbers in some problems there are more then 1 answer to
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