Unit 4B Final Exam Review

The first step in solving quadratic equations is to . . .

• factor

• write the equation in standard form

• use quadratic formula

• complete the square

Tags

CCSS.HSA-REI.B.4B

ax²+bx+c=0  is the standard form of a quadratic equation.

• True
• False

What is this formula?

• This is the standard formula.

• This is the quadratic formula.

• This is the square root formula.

• This is the Pythagorean formula

Tags

CCSS.HSA-REI.B.4B

The quadratic equation can be used to solve quadratic equations that can or cannot be factored.

• True

• False

Tags

CCSS.HSA-REI.B.4B

Determine the values of a, b, and c for the quadratic equation:

4x² – 8x = 3

*Reminder: the equation MUST equal zero.

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

In the equation
y = x² +5x +7, match each leading coefficient with its correct letter 

• a=0, b=5, c=7
• a=1, b=5, c=7
• a=7, b=5, c=1

What should you do first in solving this equation?

x² + 6x - 13 = 3

• Factor

• Write down: a = 1, b = 6, c = -13

• Subtract 3 from both sides.

• Add 3 to both sides.

Tags

CCSS.HSA-REI.B.4B

True or false:
The solutions, roots, x-intercepts, and zeros of a quadratic equation are all the same thing.

• True
• False

Given a graph, how can you find the "solutions" to a quadratic?

• on the y-axis
  (y-intercepts)

• on the x-axis

  (x-intercepts)

• you can't

• the vertex or turning point

What are the solutions/zeros/x-intercepts/roots?

SELECT ALL THAT APPLY

• x = -4

• x = -1

• x = 0

• x = 2