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3 years ago

URGENT PLEASE HELP!!!!! Which equation represent the line which passes through the point (-3, -4) and has a slope of -2?

Mathematics

1 answer:

stiv31 [10]3 years ago

8 0

Answer:

A:-2x-10

Step-by-step explanation:

Think of it like this for the y coordinate:

y=-2x-10

y=-2(-3)-10

y=6-10

y=-4

you have now found the y coordinate and by this point should be able to tell without doing the rest but if you are unsure you can do this now that you know y:

-4=-2x-10

+10 to both sides

(6=-2x)/2

(-x=3)*-1 as x is negative

x=-3

so now you know the x and y coordinate that it can pass through which proves that this is the correct choice.

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Alex787 [66]

Answer:

Option 3 and 4.

Step-by-step explanation:

The z score shows by how many standard deviations the raw score is above or below the mean. The z score is given by:

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Given that mean (μ) = 82, standard deviation (σ) = 5

1) For x = 74:

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Option 1 is incorrect

2) For x < 87

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Option 3 is correct

4) For x < 77

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Option 4 is correct

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