Algebra I Semester 2 Review B

Find the axis of symmetry for

f(x) = x²- 8x + 15.

(HINT: x = -b/2a)

• x = -4

• x = 4

• y = 4

• y = -4

What is the vertex of y=x²+4x+3?

(HINT: Find axis of symmetry and then plug it in to find y of the vertex. x = -b/2a)

• (2,1)

• (-2,1)

• (0,0)

• (-2,-1)

If the discriminant is 13, how many solutions are there? 

• 1 real solution
• 0 real solutions
• 2 real solutions

How many roots are there?
2x²-5x-6=0

• 1  
• 0 
• 2  

What is the discriminate of
f(x) = 3x² - 5x + 8
and how many solutions does the function have?

• discriminate = -71 and two imaginary solutions
• discriminate = -121 and has two imaginary solutions
• the discriminate = - 71 and has two real solutions
• the disctiminate = -121 and has two real solutions

Which of the following best describes what is happening at the zeros?

• The dolphins are at the surface of the water.
• The dolphins are at the furthest distance from the water.
• The dolphins are increasing their distance from the water.
• The dolphins are under water.

Which of the following best describes what is happening as y is increasing?

• The ball is getting closer to the ground.
• The ball is at it's max distance from the ground.
• The ball hit the ground.
• The ball is getting further from the ground.

What best describes the vertex in this scenario?

• The year with the highest concentration of residual CO2
• The year with the least concentration of residual CO2
• Residual concentration of CO2 is increasing
• Residual concentration of CO2 is decreasing

Tags

CCSS.HSA.REI.C.7

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

What best describes the y-intercept of this scenario?

• The receiver catches the ball.
• The quarterback releases the ball.
• The time the ball is in the air.
• The distance the ball was thrown.

Which best describes the height of the football at 2 seconds?

• 10 feet
• 22 feet
• 6 feet
• 31 feet