2020 Math 1B Semester 1 Review

Which of the following situations could be described by the equation

 $y=-25x+120$  

• There are 120 people in the football stadium, and 25 more are entering each hour.

• A plumber charges $25 for a house call and $120 per hour.

• A teacher has 120 students. Her third period has 25 students

• There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute

What is the y-intercept of the line graphed below?

• 3
• 4
• -3
• 4/3

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

Which equation best represents the line on the graph?

• 
  

  $y=\frac{1}{2}x$

• $y=-\frac{1}{2}x$
  

• y = 2x

• y = -2x

A fitness club opens with 80 members. Each month the membership increases by 15 members. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?

• y = 15x

• y = 15x + 80

• y = x + 15

• y = 80x + 15

Write an expression for the following. Jerry has $20 and makes $7 per hour.

• y = 7x + 20

• y = 7 + 20x

• y = 20 + 7

Sandra has a $20 itunes gift card and spends $3 each month.

• y = 3x + 20

• y = 3 + 20x

• y = -3x + 20

• y = -20x + 3

India graphed two lines in order to find the solution to a given system of equations.

What is the solution?

• (-3,-8)

• (-8,-3)

• (3,-8)

• (8,3)

Tags

CCSS.8.EE.C.8B

Callie graphed two lines in order to find the solution to a given system of equationsThe solution is:

• (4, 3)

• (3, 4)

• (-4, 3)

• No solution

Tags

CCSS.8.EE.C.8B

Miracle graphed two lines in order to find the solution to a given system of equations. What is the solution to the system?

• (3, -1)

• (2, -6)

• No Solution

• (6, -2)

Tags

CCSS.8.EE.C.8B

Trinti graphed two lines in order to find the solution to a given system of equations. How many solutions are there?

• One Solution

• No solution

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8B