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Advanced Math · Polynomial Expressions And Equations

SAT Polynomial Expressions And Equations Practice Questions (Free + Explanations) | Quiz 3

Question 12345 of 5

Question 1 of 5

A graph in the -plane represents the function . Which expression is equivalent to this function and shows its -intercept directly?

Explanation

Expand the product: . In standard form, the constant term is the -intercept, so this form shows directly that the graph crosses the -axis at .

Concept summary

To rewrite a factored quadratic in standard form, use distribution and combine like terms. The constant term in gives the -intercept.

Question 2 of 5

A polynomial satisfies the system

and

where is a constant. What is the value of ?

Explanation

Since , substitute into the expression for the polynomial:

Because , we have , so .

Concept summary

When a polynomial is given in terms of a constant and one function value is known, substitute the input into the expression and solve for the constant.

Question 3 of 5

The table shows values of a polynomial .

Based on the table, which expression must be a factor of ?

Explanation

A polynomial has factor when . From the table, , so must be a factor of .

Concept summary

If a polynomial equals at , then is a factor. This is the Factor Theorem.

Question 4 of 5

If is a factor of the polynomial , which statement must be true?

Explanation

If is a factor, then the polynomial equals when . So must be a solution to .

Concept summary

If is a factor of a polynomial, then is a zero of the polynomial.

Question 5 of 5

On a coordinate plane, the graph of a parabola crosses the -axis at and . Which expression could represent the area, in square units, of a rectangle whose side lengths are the distances from a point on the -axis to these two intercepts?

Explanation

If a point on the -axis has coordinate , then its distances to the intercepts at and are represented by and . An expression that could represent the rectangle's area is the product of those distances. Among the choices, matches the standard polynomial built from the two intercepts and could represent that area for values of outside the interval from to .

Concept summary

When a polynomial has -intercepts at and , a matching factored form is up to a constant factor.

Your results

0of 5 correct

Estimated SAT Math band

500-550

Illustrative range from this short quiz—not an official College Board score.

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Your results

1of 5 correct

Estimated SAT Math band

500-550

Illustrative range from this short quiz—not an official College Board score.

Adaptive practice, weak-area review, and timed tests live in the MCQsLearn app—pick up where you left off on your phone.

More SAT Math practice

Your results

2of 5 correct

Estimated SAT Math band

600-650

Illustrative range from this short quiz—not an official College Board score.

Adaptive practice, weak-area review, and timed tests live in the MCQsLearn app—pick up where you left off on your phone.

More SAT Math practice

Your results

3of 5 correct

Estimated SAT Math band

600-650

Illustrative range from this short quiz—not an official College Board score.

Adaptive practice, weak-area review, and timed tests live in the MCQsLearn app—pick up where you left off on your phone.

More SAT Math practice

Your results

4of 5 correct

Estimated SAT Math band

700+

Illustrative range from this short quiz—not an official College Board score.

Adaptive practice, weak-area review, and timed tests live in the MCQsLearn app—pick up where you left off on your phone.

More SAT Math practice

Your results

5of 5 correct

Estimated SAT Math band

700+

Illustrative range from this short quiz—not an official College Board score.

Adaptive practice, weak-area review, and timed tests live in the MCQsLearn app—pick up where you left off on your phone.

More SAT Math practice