Finding Zeros from a Graph

Which of the following is true about the x-intercepts of a graph?

• They are the points where the graph intersects the x-axis.

• They are the points where the graph intersects the z-axis.

• They are the points where the graph intersects the y-axis.

• They are the highest points on the graph.

What are x-intercepts also known as?

• Maximums

• Minimums

• Zeros or roots

• Y-intercepts

How can you find the x-intercepts of a graph?

• Set the equation or function equal to zero and solve for x.

• Set the equation or function equal to a constant and solve for x.

• Use the y-intercepts to determine the x-intercepts.

• Plot the graph and identify the points where it intersects the x-axis.

What does an x-intercept represent?

• The highest point on a graph.

• The point where a graph intersects the y-axis.

• The point where a graph intersects the x-axis.

• The point where a graph intersects the z-axis.

What are zeros of the graph?

(a)   (b)  

• (1, 0)

• (5, 0)

• (3, -4)

• (0, 5)

• (0, 1)

What are the zeroes of this graph?

• x = -2, x = 1, x = 4

• x = -4, x = 0, x = 1, x = 2,

• x = -2, x = -1, x = 0, x = 4

• x = -4, x = -1, x = 2

What are the zeros of this polynomial? Check all that apply.

• x = -2.5

• x = 1.5

• x = -1

• x = 0

• x = 3

What are the zeros of this polynomial? Check all that apply.

• x = -4

• x = -2.5

• x = -1

• x = 1

• x = 3

What are the zeros of the function?

• 4,1

• 3,1,-2,-5

• -3, -1, 2, 5

• -2,4