Answered

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Write an equation for the polynomial graphed below

Write An Equation For The Polynomial Graphed Below class=

Sagot :

I actually just answered the exact same question for someone else.

Answer:

y(x)=-C(x-1)^3(x+4)(x+2)

Step-by-step explanation:

Look at each point the graph passes the x-axis.

At this line, y=0, we can make factors of the polynomial.

It passes through x=-4, x=-2, and x=-1

Since each factor is written as (x-k), we put the opposite,

so (x+4) for passing through x=-4

At x=1, it becomes more of a special case as it isn't a simple pass through,

but instead flattens a little. If it bounces back up, the exponent is even.

Since it passes through, we know the exponent is odd.

In this scale, I assumed the flat part is about 3.

Similarly, I cannot see the maxima and minima,

so there may be an additional constant missing to vertically elongate or flatten the graph, which I have input at 'C'.

Lastly, I can see that the polynomial is odd (largest power is 5 I believe), so since it begins and ends decreasing, the polynomial has a negative constant, hence the negative sign at the beginning, meaning C>0 as I accounted for the confirmed negative value.

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