Quadratic Review for Rossi's megaclass

Which of the following is vertex form of a quadratic equation?

• y = ax² + bx + c

• y = mx + b

• y = a(x - h)² + k

• y = ax - h² + k

What is the y-intercept of the equation y = 2x² + 8x + 3?

• (0,3)

• (0,2)

• (3,0)

• y = -2

Tags

CCSS.HSF-IF.C.7A

Where is the AoS (axis of symmetry) for y = 2x² + 4x + 5. Remember to put 'x = ' with your answer.

The vertex of the equation y = -x² + 2x + 3 will be the __________ of the parabola.

• minimum

• maximum

What are the zeros of the equation y = -x² - 5x + 12?

• -4.9 and -0.1

• -0.45 and 3.55

• -8.54 and 8.54

• -6.77 and 1.77

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Will Adriana miss the google meeting this week again?

• Yes

• Oh definitely

• No, she put it in her calendar

• Wait...we have google meetings?

Tags

CCSS.RI.2.1

CCSS.RI.3.1

CCSS.RL.1.1

CCSS.RL.2.1

CCSS.RL.3.1

Solve by completing the square: x² + 6x = 55. But this is multiple choice so I won't know what method you used, so do whatever you want.

• -14 and 2

• -5 and 11

• 14 and -2

• 5 and -11

Tags

CCSS.HSA-REI.B.4B

Complete the square:

x² + 6x - 5 = 0

• (x + 3)² = 5

• (x + 3)² = 14

• (x + 6)² = 9

• (x + 6)² = 14

Tags

CCSS.HSA-REI.B.4B

Convert the equation y = x² - 2x - 5 into vertex form.

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)