Practice Quadratic Formula

Identify the values of A, B, and C

10p² + 7p - 20 = 0

• A=1, B=7, C=-20

• A=10, B=7, C=20

• A=10, B=-7, C=-20

• A=10, B=7, C=-20

Which example below uses the quadratic formula correctly?

Tags

CCSS.HSA-REI.B.4B

• No Solution, because of the negative under the square root.

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form

• Write down: a=1, b=6, c=-13

• Make it equal 0 by subtracting 3 on each side

• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

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

• True

• False

In the equation ax²+bx+c=0, the x² term always corresponds with 

• a

• b

• c

In the equation ax²+bx+c=0, the x term always corresponds with 

• a

• b

• c

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3
*remember right side should =0

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Solve for x.  Round to the nearest hundredth if necessary.
3x² = 16x + 12

• x = -.67, 6

• x = -6, .67

• x = 3.33, 18

• x = -3.33, 18

Tags

CCSS.HSA-REI.B.4B

In the equation ax²+bx+c=0, the c term always the 

• x² term

• x term

• constant