Topic 4 Math 2 Semester 1 Final Review (Regular)

Use Desmos: Julian hits the baseball while at-bat. The height of the baseball is modeled by the function:
 $f\left(x\right)=-16x^2+60x+10$   where x is the number of seconds after the ball is hit.  Use the graph below to find out how long will the ball be in the air?

• 3.91 seconds

• 3.21 seconds

• 4.3 seconds

• 5.15 seconds

You entered a quadratic function into a graphing calculator and got the following table. It is clear to you that one x-intercept is (2, 0 ). Between what two x coordinates would the other x-intercept be ?

• 0 and 1

• -2 and -1

• 1 and 2

• 2 and 3

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² + 3x - 18 = 0

• x = -3 and x = 6
• x = 3 and x = -6
• x = -9 and x = 2
• x = 9 and x = -2

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:
 x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Tags

CCSS.HSA-REI.B.4B

6x²-x-2=0

• x= -2/3 and x = 2

• x= 2/3 and x = -1/2

• x= -2/3 and x = -1/2

3x²+9x-30=0 (Check for GCF first always)

• x= 2 and x = -5

• x= 5 and x = -2

• x= -5 and x = -2

Solve by factoring:
x² + 3x - 18 = 0

• x = -3 and x = 6
• x = 3 and x = -6
• x = -9 and x = 2
• x = 9 and x = -2

Tags

CCSS.HSA-REI.B.4B

Solve 2x^2 + 7x - 15 = 0

• x= -1.5 and x = 5

• No Solution

• x= -5 and x = 1.5

• x=0.7 and x = 5

√128

• 64√2
• 16
• 2√8
• 8√2

Tags

CCSS.HSA.SSE.B.3

CCSS.HSN.RN.A.2