CCSS.Math.Content.HSA.REI.B.4

Solve
4m² - 100 = 0

• m=25, -25
• m=96
• m=5, -5
• m=-96

Tags

CCSS.Math.Content.HSA.REI.B.4

Convert x²-6x+9 to factored form and identify the solution.

• (x-3)(x-3); x=3
• (x+3)(x+3); x=-3
• (x+4)(x+2); x=-4, -2
• Not factorable

Tags

CCSS.Math.Content.HSA.REI.B.4

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

Tags

CCSS.Math.Content.HSA.REI.B.4

What is the approximate side length of a square that has an area of 40?

• 20
• 10
• 1600
• 6.3

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve by taking square roots:
3 + 9r² = 12

• r = 0
• no solution
• r = 3, r = -3
• r = 1, r = -1

Tags

CCSS.Math.Content.HSA.REI.B.4

A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
 h = -16t² + 64t + 960.
When did the ball hit the ground?

• 10 seconds
• 2 seconds
• 5 seconds
• 7 seconds

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve
 3x² + 5x - 12 = 0

• x = -4/3, x = 3
• x = 4/3, x = -3
• x = -1, x = 4
• x = 1, x = -4

Tags

CCSS.Math.Content.HSA.REI.B.4

How high would you jump if the equation for jumping from a cliff is:    
h(t) = -16t² + 8t + 24?

• 25
• 24
• 8
• 26

Tags

CCSS.Math.Content.HSA.REI.B.4

How many solutions does this quadratic have?

• Two Real Solutions
• One Real Solution
• No Real Solutions
• I don't know

Tags

CCSS.Math.Content.HSA.REI.B.4

Which of the following quadratic equations can be solved with the graph shown? 

• x² - x - 6 = 0
• x² - x + 6 = 0
• x² + x - 6 = 0
• x² + x + 6 = 0

Tags

CCSS.Math.Content.HSA.REI.B.4