Section C Section C Checkpoint

Problem 1

Of the lines on the graph, line $\ell$ has a slope of 1 and line $m$ has slope of 3 and line $n$ has a slope of $\frac12$ .

Label lines $\ell$ , $m$ , and $n$ .

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Solution

A line can be described by the equation $\frac{y-1}{x-3}=\frac13$ . Is the point $(33,12)$ on this line? Explain or show your reasoning.

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Solution

No. Sample reasoning: Since

\frac{12-1}{33-3}=\frac{11}{30}

and not

\frac13

, the point

(33,12)

does not make the equation true.

Select all equations that describe the line.

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Solution

A, E