Graphing systems of equation and inequalities

An inequality using a > or a < has a ___________ line

• invisible
• solid
• dashed

The graph of 
y ≥  x - 3 
is shaded ???

• Over / Above
• Under / Below

Identify two solutions for the inequalities systems

• (2, 3)

• (4, -2)

• (2, -4)

• (-2, 0)

If I were to solve for x in the second equation, what would be the only step?

-7x - 2y = (-13)

x - 2y = 11

• Add x

• Subtract 11

• Subtract 2y

• Add 2y

4x - 2y = 7

x + 2y = 3

If I had to solve using substitution, which variable should I solve for?

• y in the first equation

• y in the second equation

• x in the second equation

• x in the first equation

Which point is a solution?

• (0, 6)
• (-3, 4)
• (1, 0)
• (-4, 3)

The equations of two lines are 6x + y = 26 and y = 2x + 10. If the solution is (2, y), what is the value of y? 

• 14
• 4
• 6
• 2

Which point is not a solution?

• (1, 3)
• (-1, 2)
• (3, -2)
• (5, 0)

Your family goes to a southern style restaurant for dinner. There are 6 total people in your family. Some order chicken for $14 and the rest order steak for $17. The total bill is $99. Write a system that could represent this situation.

• c + s = 6
  14c + 17s = 99
• c + s = 99
  14c + 17s = 6
• c + s = 6
  17c + 14s = 99
• c + s = 99
  17c + 14s = 6

Caitlin won a bag full of money! She has 49 bills in all. She counts $1,430. There are $20 dollar bills and $50 dollar bills. How many of each bill does Caitlin have?
WRITE a system where T= # of $20 and F = # of $50.

• T + F = 1430
  20T + 50F = 49
• T+ F = 49
  10T + 5F = 1430 
• T + F = 49
  20T + 50F  = 1430
• T + F = 49
  T + F = 1430