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Chapter 10: Q 302 (page 1238)

Determine the following parabolas open up or down.

Short Answer

Expert verified

The required result is parabola opens downward .

Step by step solution

01

 Given Information  

The given equation isy=-4x2-7x+1

02

Find the leading coefficient .

Leading coefficient is the coefficient of the term of highest degree in the given polynomial

Here , the leading coefficient is-4

03

Determine the sign of the leading coefficient .

If the leading coefficient is greater than zero , the parabola opens upward and if the leading coefficient is less than zero , the parabola opens

downward .

Here -4≤0

Therefore , the parabola opens downward .

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