Solving Quadratics with Quadratic Formula and Square Root Method

When using the Quadratic Formula method, what are a, b, and c for the equation: 9x²-x+7=2?

• a=9, b = -1, c =7

• a=1, b = 0, c =7

• a=9, b = -1, c =5

• a=9, b = 7, c =2

Tags

CCSS.HSA-REI.B.4B

Using the Square Root method, what is the first step to solving the equation: 8x²+9=10

• Subtract 10 from both sides

• Divide by 8

• Subtract 9 from both sides

• Take the square root of both sides.

Tags

CCSS.HSA-REI.B.4B

Which method will work well for ANY quadratic equation?

• Factoring

• Square Root

• Completing the Sqare

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

What is this formula?

• This is the speed of light formula.

• This is the quadratic formula.

• This is the zero product property.

• This is the least squares formula

Tags

CCSS.HSA-REI.B.4B

Solve the quadratic equation.
2p² - 2p - 55 = 5

• A .  {3.28, -2.28}

• B .  {2.5, -1.78}

• C . {6, -5}

• D . {-1, 4}

Tags

CCSS.HSA-REI.B.4B

Which of the following would be the best first step in using the quadratic formula to solve a quadratic equation?

• Identify A, B, and C

• Set one side of the equation equal to zero

Tags

CCSS.HSA-REI.B.4B

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

Which of the following expressions represents the discriminant?

• ax² + bx + c

• b - 4ac

• b² - 4ac

• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

If the discriminant is positive, then the equation will have...

• one real solution

• two real solutions

• no real solutions

• one imaginary solution

Tags

CCSS.HSA-REI.B.4B

Which of the following is not a method we have used to solve quadratics?

• Factoring

• Quadratic Formula

• Simplifying

• Taking the Square Root

• Graphing

Tags

CCSS.HSA-REI.B.4B