Solving Systems

solve for x and y
5x + 3y = 7
y = 4

• (4,1)
• (4,-1)
• (1,4)
• (-1,4)

Tags

CCSS.HSA.REI.C.6

Solve for x and y
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

Which system of equations below models this situation?
The sum of two numbers is 39 and the difference between the same two numbers is 43.  Which system below can be used to find the two numbers?

• x + y = 39
  x + y = 43
• x - y = 39
  x - y = 43
• x + y = 39
  x - y = 43
• x - y = 39
  x + y = 43

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

Tags

CCSS.HSA.REI.C.6

What is the solution?

• One Solution
• No solution
• Infinitely Many Solutions

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

This system has _____ solutions

• 0
• 1
• 2
• Infinitely many

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Consider the equation:
y=-x+4
Identify the slope and y-intercept.

• m=4, b=-x
• m=-x, b=4
• m=1, b=4
• m=-1, b=4

Jazmin and her sister are saving to buy an tablet.  Jazmin has $50 and plans to save $10 per week.  Her sister has $80 and plans to save $7 per week. In how many weeks will will they both have the same amount of money saved?

• 2 weeks
• 10 weeks
• 4 weeks
• 11 weeks

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Solve:
y= 7/3x-3
y=11

• (11,6)
• (6,11)
• (3,4)
• (-6,11)