2 years ago

Find the slope of the line that goes through the points (1,9) and (3,15) and

1 answer:

7 0

Answer: B

Step-by-step explanation:

$m=\frac{15-9}{3-1}=3$

Substituting into y=3x+b,

$9=3+b\\ \\ b=6 \implies y=3x+6$

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