PA Systems of Linear Equations Review

Which point satisfies the system of equations?

y = 3x - 7

y = -2x + 5

• (0, -1)

• (4, -2)

• (2.4, 0.2)

• (5.8,-0.4)

What is the solution of the system?

• (-2, 4)

• (2, 4)

• (-4, 2)

• (4, -2)

If the lines in a system of equations have the same slopes and the different y-intercepts, how many solutions does the system have?

• no solutions

• one solution

• infinite number of solutions

Graph the line that represents the equation y = 3x - 5 by placing 2 points on the line.

Approximate the solution to the system of equations to the nearest tenth. Pay attention to the numbers on the axes.

y = 2/3x + 1

y = 3/2x - 2

• (-2.6, -3.9)

• (3.6, 3.4)

• (-3.2, 4.8)

• (1.5, 2.5)

Match each graph to the number of solutions the system of equations has.

• infinite number of solutions

• 
• one solution

• 
• no solution

• 

At a local movie theater, the price for tickets is $10.00 for adults and $5.50 for students. The price of adult tickets increases by $0.20 each year, and the price of student tickets increases by $0.50 each year. The equations y = 0.20x + 10 and y = 0.50x + 5.5 represent the situation, where x represents the number of years since the first year, and y represents the price of the tickets. After how many years will the ticket prices be the same?

Mathematical Equivalence

ON

Verizon costs $15 every month, plus an extra 30 cents per text.

AT&T is offering unlimited texting for $30 every month.

y = 0.3x + 15

y = 30

If you send an average of 40 texts each month, which plan is a better deal for you?

• Verizon

• AT&T

• Choose this if you have no idea but will persist to ask me how math can help you in the future

• Not enough information

• They're equal

Which graph could be used to represent the following system of equations?

y = 3x

y = -3/4x + 2

• 
• 
• 
• 

Match the following.

A system of linear equations that has.....

• has

  1 Solution

• 2 lines that intersect

• has

  NO Solutions

• 2 lines that overlap

• has

  Infinite Solutions

• 2 parallel lines

Tags

CCSS.8.EE.C.8A