Finding Zeros

Front

What are the zeros of the polynomial x^2 - 9?

Back

The zeros are x = -3 and x = 3.

Front

Which value is a zero of the graph of a function?

Back

The zero is -1.

Tags

CCSS.HSF-IF.C.7D

Front

Identify the zeros of the function given by the equation: y = x^2 - 4.

Back

The zeros are x = 0 and x = 4.

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Front

Find the roots of the polynomial x^2 - 25.

Back

The roots are x = -5 and x = 5.

Tags

CCSS.8.EE.A.2

Front

What is an x-intercept of the function y = x - 1?

Back

The x-intercept is 1.

Front

Define 'zero' in the context of a polynomial function.

Back

A zero of a polynomial function is a value of x that makes the function equal to zero.

Tags

CCSS.HSF-IF.C.7C

Front

What is the relationship between zeros and x-intercepts?

Back

Zeros of a function correspond to the x-intercepts of its graph.

Tags

CCSS.HSF-IF.C.7C

Front

How do you find the zeros of a quadratic function?

Back

You can find the zeros by factoring, using the quadratic formula, or completing the square.

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Front

What is the quadratic formula used for?

Back

The quadratic formula is used to find the zeros of a quadratic equation in the form ax^2 + bx + c = 0.

Tags

CCSS.HSA-REI.B.4B

Front

What are the zeros of the polynomial x^2 + 4x + 4?

Back

The zeros are x = -2 (a repeated root).