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3 years ago

4. Write the equation of line that is perpendicular to y= -1/3x + 7 and has a y intercept of -1.

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

5 0

Answer:

Step-by-step explanation:

Two lines are perpendicular if the product of theirs slopes is equal -1:

y=m₁x+b₁ ⊥ y=m₂x+b₂ ⇒ m₁×m₂ = -1

y = -1/3x + 7 ⇒ m₁=-1/3

-1/3×m₂ = -1 ⇒ m₂ = 3

The y-intercept is b=-1 so the equation in slope-intercept form:

y = 3x - 1

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Need Help<br>*Please Show Work*

sergejj [24]

Hi there! :)

Answer:

y = -2x + 3

Step-by-step explanation:

We can write an equation in slope-intercept form. Use the slope formula to find the rate of change in the table:

$m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}$

Plug in values from the table:

$m = \frac{5 - 7}{-1 - (-2)}$

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Use a point from the table (-2, 7) and the slope to solve for the equation for the linear function:

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4 years ago

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This is the solution

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3 years ago

the length.of a hypotenuse of a right triangle is 32 inches and the length of one of the lrgs is 18 inches. what is the length,

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6 0

3 years ago