Solving System of Equations

A system can have how many possible answers?

• 1
• 1, none, or infinite
• 2
• 1,2,3, or infinite

The solution to this system is?

• (3,1)
• (-1,3)
• (2,3)
• (1,3)

^{Write the 2 equations in
y = mx + b form}

• y =2/3x and
  y = 2x -4
• y = -2/3x +1
  and y = 2/3x - 4
• y = 2x - 4 and
  y = 1/2x
• y = 2x + 3 and
  y = 2/3x - 4

What is the solution?

• No solution
• (0, 2)
• (0, -4)
• (3, -3)

These two lines intersect at _____.

• (4, -2)
• (4, 2)
• (-2, 4) 
• No solution

What is the solution to this system?

• One Solution
• No solution
• Infinitely Many Solutions

^{Solve by graphing.}

• (-4, 2)
• (4, 2)
• (2, -4)
• (2, 4)

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

Find the slope.
(0,5) and (3,3)

• -3/2
• -2/3
• 3/2
• 2/3

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)