Algebra 2B 8.3 Q

Find the axis of symmetry for

f(x) = x² − 8x + 15.

• x = −4

• x = 4

• y = 4

• y = −4

Find the vertex

y = x² + 16x + 71

• (−8, 7)

• (−8, 3)

• (8, 10)

• (16, −2)

What is the y-intercept of the function?

y = 2x² + 3x + 5

• 2

• 3

• 5

• Cannot be determined

Determine if the function graphed has a maximum or a minimum value and identify that value.

• maximum at -1

• minimum at -1

• maximum at 4

• minimum at 4

What is the arrow pointing at? How can you use this value to determine the minimum/maximum values?

• The arrow is pointing at the y-intercept. The y value of this point is equivalent to the maximum/minimum 
• The arrow is pointing at the vertex. The x value of this point is equivalent to the maximum/minimum
• The arrow is pointing at the solution. The y value of this point is equivalent to the maximum and the x value is equivalent to the minimum
• The arrow is pointing at the vertex. The y value is equivalent to the minimum/maximum

• maximum

• minimum

• up

• down

• left

• right

• up

• down

• left

• right

Does this graph have a maximum or minimum?

• Minimum
• Maximum