Unit 5 Part 1 Review

What mathematical process did they use?

• Quadratic Formula

• Completing the Square

• Factoring

• Differentiation

What mathematical process did they use?

• Differentiation

• Quadratic Formula

• Factoring

• Completing the Square

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

True or false:
The solution, root, x-intercept, and zero of a problem are all the same thing

• True

• False, because the solution and root are the same but the x-intercept and zero are different

• False, because the x-intercept and root are the same but the zero and solution are different

• False, they are all different

What are the x- intercepts?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

y=2x²-6x+1 is in what form?

• Vertex Form

• Factored form

• Standard Form 

• Cannot be determined

Solve using the quadratic formula.
2x² - 9x - 35 = 0

• x = 7/2, x = -6

• x = -5/2, x =5

• x = -3/7, x =6

• x = -5/2, x = 7

• A

• B

• C

• D

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

• 
• 
• 

What is the first step to solving THIS equation by completing the square?
a² + 10a + 21 = 0

• Set the equation equal to zero

• Divide 10 by 2 and add the result to both sides

• Add a² and 10a together

• Subtract the 21