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PLEASE HELP!!!!

Which of the following functions is graphed below?!?

PLEASE HELP!!!! Which of the following functions is graphed below?!?-example-1
User Cairnarvon
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2 Answers

7 votes

The given graph is for a piecewise function consisting of two intervals:

(1) x ≤ 1 ⇒⇒⇒ the graph in this interval like a cubic function.

(2) x > 1 ⇒⇒⇒ the graph in this interval like a quadratic function

By comparing to the given options

The answer is option c.

User Dmitry Ermolov
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6.3k points
4 votes

Answer:

Option C is correct.

Step-by-step explanation:

A piece-wise function is a function which is defined by multiple sub-functions, each sub-function applying to a certain interval of the main function's domain.

From the graph we can see that the function is made up of 2 pieces.

Solid dot means- Including

Open-dot means - not- including.

As we can see that the boundary lines are at x=1.

We have to look each line separately to determine each equation:

when
x>1, it gives the function
y=x^2+4 and

when
x\leq 1, it gives the function
y =x^3-2.

So, the piece-wise function is:


y=\left \{ {{x^3-2}, x\leq1 \atop {x^2+4}, x>1} \right.

User Pyetras
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