130k views
3 votes
Find the slope of the line that passes through (81, -18) and (7, -56).

User Dwyane
by
5.6k points

2 Answers

3 votes

Answer:

19/37

Explanation:

(-18-(-56))/(81-7)

38/74

19/37

User Dandu
by
4.8k points
6 votes

Answer:

Slope (m) =

ΔY

ΔX

=

38

79

=

0.48101265822785

θ =

arctan(

ΔY

) + 180°

ΔX

=

205.68814343565°

ΔX = 7 – 86 = -79

ΔY = -56 – -18 = -38

Distance (d) = √ΔX2 + ΔY2 = √7685 = 87.664131775772

Equation of the line:

y = 0.48101265822785x – 59.367088607595

or

y =

38

x

79

4690

79

When x=0, y = -59.367088607595

When y=0, x = 123.42105263158

User Strawberryshrub
by
5.1k points
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