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21 votes
21 votes
Can someone help me please

Can someone help me please-example-1
User LzyPanda
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2 Answers

14 votes
14 votes


\displaystyle\\Answer:\ y=(x)/(3)-60

Explanation:

y=kx+b (1)

The formula for the slope coefficient of the straight line


\displaystyle\\\boxed {k=(rise)/(run)=(y_2-y_1)/(x_2-x_1) }

Choose two coordinate points belonging to the line: (0,-60) (30,-50)

Hence,


\displaystyle\\k=(-50-(-60))/(30-0) \\\\k=(-50+60)/(30)\\\\k=(10)/(30) \\\\k=(1*10)/(3*10) \\\\k=(1)/(3) \\\\Thus, \ y=(1)/(3) x+b\\(0,-60)\\-60=(1)/(3) (0)+b\\-60=0+b\\-60=b\\\\As \ a\ result:\\\\y=(x)/(3)-60

User TomMP
by
3.3k points
23 votes
23 votes
y=1/3(x+(3*(-60))) => y=1/3(x-180)
User Zsolt Safrany
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2.9k points