Sec. 8.2 (Quadratic Functions in Vertex Form) - Alg 1

Sec. 8.2 (Quadratic Functions in Vertex Form) - Alg 1

Review

Multiple Choice

Which of the following equations matches vertex form of a quadratic?

• ax + by = c

• y = a(x - h)² + k

• y = ax² + bx + c

• y = mx + b

Multiple Choice

Which of the following is a transformation of the graph y = x² - 4 ?

• Shifts left 4.

• Shifts right 4.

• Shifts up 4.

• Shifts down 4.

Multiple Choice

How does this function compare to the graph of  $y=x^2$  ? Choose all that apply.

 $f\left(x\right)=-\left(x-4\right)^2+1$  

• Opens up, Right 4, Down 1

• Opens down, Right 4, Up 1

• Open down, Left 4, Up 1

• Opens up, Left 4, Up 1

Multiple Choice

How does this function compare to $f\left(x\right)=x^2$ ? Choose all that apply.

 $g\left(x\right)=\left(x-3\right)^2-5$  

• Right 3, Up 5

• Left 3, Down 5

• Left 3, Up 5

• Right 3, Down 5

Multiple Select

How does  $g\left(x\right)=2\left(x-3\right)^2+4$  compare to  $f\left(x\right)=x^2$  ? Choose all that apply. 

• Narrower

• Wider

• Right 3, Up 4

• Left 3, Down 4

• Right 3, Down 4

Sec. 8.2 Notes (continued)

Turn to p. 6 in your Chapter 8 Note Packet. Please watch the video and fill in your notes.

Multiple Choice

If given the equation

y = 3(x + 5)² - 4,

what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

THE END

Multiple Choice

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• symmetrical point for the vertex

Multiple Choice

A parabola has a vertex at (-3,2). Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

Multiple Choice

Which of the following is the correct equation for the given graph?

• f(x) = (x - 2)² - 1
• f(x) = (x + 2)² - 1
• f(x) = -(x + 2)² - 1
• f(x) = -(x - 2)² - 1

Multiple Choice

Given: y = 2(x - 5)² + 6, the vertex is

• (2,-5)

• (-5,6)

• (2,6)

• (5,6)

Multiple Choice

What is the equation of this graph?

• f(x) = (x -5)² + 1

• f(x) = (x - 1)² - 5

• f(x) = (x + 1)² - 5

• f(x) = (x + 5)² +1

Multiple Choice

If each mark on the x-axis represents one second, when did the object reach the ground?

• 2.5 seconds

• 6 seconds

• 5.5 seconds

• 5 seconds

THE END