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Treat f(x)=y aka solve for x disregard f(x) then plug into y (3.3)
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Slope intercept form etc also applies tooo
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No solution: answer is different numbers or letters
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Infinitely Many solutions: Both sides of equation are identical
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Infinity always has parenthesis
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brackets apply to the greater/less than or equal to sign and
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when you divide a negative inequality term, you swap the >,< etc.
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Point Slope
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y-y1=m(x-x(1))
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Slope intercept
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y=mx+b
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Standard
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Ax+By=C
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Slope Formula
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y-y(1) over x-x(1)
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when in doubt make a table
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For each x there is exactly one y in the range
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Parallel
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Same slope
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Perpendicular
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Slope is a negative reciprocal of the other line
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