2 years ago

Please help with this question thanks!!

Mathematics

1 answer:

zvonat [6]2 years ago

8 0

Answer:

(-1,4)

Step-by-step explanation:

Step 1) Change both equations to slope intercept form

3x+y=1 ---> y=-3x+1

5x+y=-1 ---> y=-5x-1

Step 2) Plot lines accordingly on graph

Lines intersect at (-1,4)

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Answer:

$f$ is sometimes positive and sometimes negative.

Step-by-step explanation:

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Take $x=-1\in(-2,\frac{9}{2})\ as-2$

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Take $x=2\in(-2,\frac{9}{2})\ as\ -2$

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Step-by-step explanation:

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