DC Algebra - Practice for 3.1

What is the axis of symmetry of the given function?

• y = 1
• y = -1
• x = 1
• x = -1

What is the vertex of the parabola: y=2(x-3)²+4

• (3,4)
• (-3,4)
• (3, -4)
• (-3,-4)

The axis of symmetry line passes through which point?

• y-intercept
• any random point
• vertex
• symmetrical point for the vertex

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

Tags

CCSS.HSF-IF.C.7A

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)

Identify the vertex and whether the graph opens up or down.

• (5, 2); opens up
• (5, 2); opens down
• (-5, 2); opens up
• (-5, 2); opens down

Tags

CCSS.HSF-IF.C.7A

Which equation has a vertex of (-3, 4)?

• y = 2(x+3)² + 4
• y = (x+3)² - 4
• y = (x-3)² + 4
• y = 2(x - 3)² + 4

Write y = x² + 4x - 1 in vertex form.

• y = (x - 2)² + 5
• y = (x + 2)² - 5
• y = (x + 2)² - 1
• y = (x +2)² + 3

Write y = x² - 18x + 52 in vertex form.

• y = (x - 9)² + 113
• y = (x + 9)² - 29
• y = (x - 9)² + 52
• y = (x - 9)² - 29

Convert the equation y= 5x² - 40x + 67 into vertex form.

• y= -5(x + 4)² + 13

• y= 5(x + 4)² - 13

• y=5(x - 4)² - 13

• y= 5(x - 13)² + 4