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3 years ago

What is the point-slope equation of the line with slope -13 that goes through the point (5, 7)?

1 answer:

7 0

Hello
the point-slope equation of the line with slope -13 that goes through the point (5, 7) is : A) y - 7 = -13(x - 5)
because ; 7-7= -13(5-5)

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3 years ago

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2 years ago

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Anna35 [415]

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3 years ago

What is the equation of the line that is perpendicular to the line y=3/5xplus 10 and passes through the point (15,-5)?

Allisa [31]

Step-by-step explanation:

a general line equation is

y = ax + b

the original line is

y = 3/5 x + 10

the factor of x is always the slope (inclination of the line).

it is "y change/x change".

the slope of a perpendicular line (angle of 90°) is turning the slope of the original line upside-down and flips the sign.

so, it is -5/3.

we use the point information to get the right "b" for our new line :

-5 = -5/3 × 15 + b

-5 = -5×5 + b

-5 = -25 + b

b = 20

so, the perpendicular line equation going through (15, -5) is

y = -5/3 x + 20

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2 years ago