Convert the following equation from point slope form to standard form y=2/5(x-10)-3

Mathematics

1 answer:

Westkost [7]2 years ago

6 0

I Hope This Helps You

y=2x-20/5-3

y+3=2x-20/5

5(y+3)=2x-20

5y+15=2x-20

2x-5y-35=0

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alexgriva [62]

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Answer:

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Step-by-step explanation:

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Answer:

A. -2sin(x)sin(0.4x)

Step-by-step explanation:

At x=0, the given expression evaluates to zero.

For x near zero, the given expression is slightly negative. You know this because cos(1.4x) decreases faster than cos(0.6x), so their difference will be negative.

Of the answer choices, you can eliminate C and D because they are not zero at x=0. You can eliminate choice B, because it is positive for values of x near zero. The only viable choice is A:

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Of course, a graphing calculator can help you figure this out. See the attachment. The given expression is plotted using a solid red line; the answer choice A is plotted using blue dots.