What Are Zeros?

What is a zero in a graph?

• A point where the graph is at its highest

• A point where the graph intersects the x-axis

• A point where the graph touches the y-axis

• A point where the graph is at its lowest

What is another name for zeros in algebra?

• Solutions

• Intercepts

• Factors

• Vertices

How do you find zeros algebraically?

• Set f(x) equal to x and solve for y

• Set f(x) equal to zero and solve for x

• Set f(x) equal to one and solve for x

• Set f(x) equal to y and solve for x

What is the zero of the function f(x) = 4x - 8?

• x = -2

• x = 4

• x = 0

• x = 2

What is the zero of the function f(x) = x² - 16?

• x = 4

• x = 0

• x = -4

• x = ±4