Chapter 5 - Revision- G 10

A system has ____________ when two lines intersect at one point. 

• One solution
• No solution
• Infinitely Many Solution

A system has ____________ when two equations are exactly the same and overlap each other.

• One solution
• No solution
• Infinitely Many Solution

A system has ____________ when two equations have same slope but different y-intercept and are parallel. 

• One solution
• No solution
• Infinitely Many Solution

To find a solution by graphing is to find the point where two lines intersect.

• True
• False

Solve by graphing. Show all work on a graph paper.

• (2, 7)
• (7,6)
• (-6,1)
• No Solution

What does it mean to substitute?

• to remember
• to replace or to plug in
• to get rid of or to take away
• to connect the dots

Solve by using substitution method.

• (2, 7)
• (0, 1)
• (2/5, 9/5)
• (2, 5)

What does it mean to eliminate?

• to remember
• to replace or to plug in
• to get rid of or to take away
• to connect the dots

Solve by using elimination method.

• (3, 1)
• ( 5, -5)
• (2, 5)
• (15, 1)

Write equations to find total amount of savings for Theresa and Cary.

• Theresa: y = 5x + 1
  Cary: y = x + 3
• Theresa: y = x + 5
  Cary: y = 3x + 1