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kari74 [83]
3 years ago
9

What is the y-intercept of the equation of the line that is perpendicular to the line y =3/5x + 10 and passes through the point

(15, –5)? The equation of the line in slope-intercept form is y = -5/3x + .
Mathematics
2 answers:
vladimir1956 [14]3 years ago
4 0
The answe would be y=-5/3x+20
FrozenT [24]3 years ago
3 0

Answer:

Equation of the line in the slope-intercept form will be y=-\frac{5}{3}x+20

Step-by-step explanation:

An equation of the line perpendicular to y=\frac{3}{5}x+10 will be in the form of y = mx + c

Where m = slope of the line

c = y intercept of the line

From the property of the perpendicular line

m_{1}\times m_{2}=-1

where m_{1} and m_{2} are the slopes of the perpendicular lines.

If  m_{1} = \frac{3}{5}

then \frac{3}{5}\times m_{2}=-1

m_{2}=-\frac{5}{3}

So the equation will be y=-\frac{5}{3}x+c

This line passes through the point (15, -5)

(-5)=-\frac{5}{3}(15)+c

-5 = -25 + c

c = 25 - 5

c = 20

Finally the equation will be y=-\frac{5}{3}x+20

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