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3 years ago

Find the value of k so that the line through the given points has the given slope.

Mathematics

1 answer:

Kay [80]3 years ago

7 0

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (1, k) and (-1, -4) and the slope m = 3/2. Substitute:

$\dfrac{-4-k}{-1-1}=\dfrac{3}{2}\\\\\dfrac{-4-k}{-2}=\dfrac{3}{2}\qquad\text{multiply both sides by (-2)}\\\\-4-k=-3\qquad\text{add 4 to both sides}\\\\-k=1\qquad\text{change the signs}\\\\\boxed{k=-1}$

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3 years ago

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3 years ago

What is the value of 2 thirds + 3 fourths

inn [45]

Step-by-step explanation:

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3 years ago

Find the value of Y in the figure above .

Blizzard [7]

9514 1404 393

Answer:

x = 37
y = 22

Step-by-step explanation:

Consecutive interior angles are supplementary.

(x -20)° +(4x +15)° = 180°

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3 years ago