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4 years ago

I’m giving 60 points to answer and marking brainliest. But don’t answer just to say u don’t know the answer plz.

Mathematics

1 answer:

PilotLPTM [1.2K]4 years ago

5 0

Step-by-step explanation:

(I'm not sure if you still needed help--you posted twice. But here is the answer anyway.)

It looked like people were helping you with the first 2, so l'll pick up from there.

3. The graph changes direction 3 times, so it shows 3 turning points.

4. x^4 is the minimum degree polynomial model, because there are 3 turning points.

5. Look at where the graph was highest. 180 appears to be the closest number to that peak, so 180 sec is correct.

6. Look at the rise again. Where is the accelaration placed on the left side of the chart? It looks to me like 3 is closest.

I'll be waiting in the comments if you need help. :)

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3 years ago

The amount Lin's sister earns at her part-time job is proportional to the number

jarptica [38.1K]

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<u>Step-by-step explanation:</u>

Here we have , The amount Lin's sister earns at her part-time job is proportional to the number of hours she works. She earns $9.60 per hour. We need to find an equation in the form y=kx to describe this situation, where x represents the hours she works and y represents the dollars she earns.Is y a function of x . Also , Write an equation describing x as a function of y . Let's find out:

Here , Lin's sister earns $9.60 per hour . Let x represents the hours she works and y represents the dollars she earns . So , According to question following is the equation framed in the form of y=kx :

⇒ $y = 9.6(x)$

Yes, y is a function of x , as a straight line with a slope of 9.6

Now , x as a function of y :

⇒ $\frac{y}{ 9.6}=(x)$

⇒ $x=\frac{1}{ 9.6}(y)$

Therefore , the equation framed in the form of y=kx is $y = 9.6(x)$ and , x as a function of y $x=\frac{1}{ 9.6}(y)$ .

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4 years ago

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11Alexandr11 [23.1K]

Answer:

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Step-by-step explanation:

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