How do I interpret the graph of a linear function?

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Answer 1 · 2014-09-14T02:50:02

Linear functions have a degree of 1.

Examples:

$2x+3y=9$
$y=4x+7$
$y=1/2x$

If the linear function is in slope intercept form, $y=mx+b$ , then $m$ indicates the slope and $b$ indicates the y-intercept.

If the linear function is in standard form, $Ax+By=C$ , then the slope is found by the quotient, $-A/B$ .

If you want to find the x-intercepts substitute in a value of 0 for the $y$ variables.

If you want to find the y-intercepts substitute in a value of 0 for the $x$ variables.