Solving quadratic and simplifying algebraic fractions - chap 14

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

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

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

4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

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Tags

CCSS.HSA-REI.B.4B

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

find x for the following equation using the quadratic formula.
2x²-8x-24=0

• x= 6, -2
• x= 2, -6
• x= 4, 2
• x= 2, 6

Tags

CCSS.HSA-REI.B.4B

The discriminant is

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

• real

• imaginary

Tags

CCSS.HSN.CN.A.1

Find the missing value "c" to complete the square:

x² + 22x + ___

• 11

• 22

• 121

• 2121

Tags

CCSS.HSA-REI.B.4B

Rewrite the equation in completing the square form.

y = x² + 6x - 5

• y=(x+3)² - 14

• y=(x-3) ² + 4

• y=(x+9)² - 14

• y=(x-9)² + 4

Tags

CCSS.HSA-REI.B.4B

What do you do to the b value to correctly complete the square?

• square it
• divide it by 2 and square the result
• divide it by 2 and take the square root of the result
• divide it by 2 only

Tags

CCSS.HSA-REI.B.4B