Finding Min and Max and Zeros with Graphing Calculator

Find the zero(s) of the function.

• x = -1, -4

• x = 1, 4

• x = 6

• x = -6, 6

Find the zero(s) of the function.

• x = 2/3, -5/4

• x = 5/4, -2/3

• x = 6.1, 2.8

• x = 1.6, -2.8

Find the zero(s) of the function.

• x = 5, -4

• x = 2, 10

• No Solution

• x = -10, 2

Find the zero(s) of the function.

• x = -7.5, 0.33

• x = -0.75, 3

• x = 0.75, -3

• x = -0.33, 7.5

When asked to find the maximum or minimum what do you do in the calculator?

• Put equation into y=, hit 2nd graph, find pattern, find middle point

• Put equation into y=, hit 2nd graph, find pattern, find x of middle point

• Put equation into y=, hit graph, see where pictures hits x-axis

• Put equation into y=, hit graph, see where pictures hits y-axis

Does this graph in the back have maximum or minimum value?

• maximum

• minimum

• neither

• both

Does this graph have a maximum or minimum value?

• maximum

• minimum

• neither

• both

Use the graphing calculator to find the zeros of the function?

f(x) = x² - 2x - 15

• x = -2

  x = -15

• x = -3

  x = 5

• x = 3

  x = -5

• x = 1

  x = -16

What are the zeros of the parabola? 

• 1, 5

• 3, -5 

• 3, 0

• -6, 1

An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation

s(t) = –16t² + 64t + 80

What will be the object's maximum height?

• 2 ft

• 80 ft

• 144 ft

• 64 ft