Homework #13- Systems of Equations

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (0, 1)

The solution to this system is...

• (4, -2)
• (4, 2)
• (-2, 4) 
• (-4, -2)

Write the equation in solve-intercept form (solve for y):
3y = 2x + 9

• y = 2/3x + 3
• y = 2x + 3
• y = 2x + 6
• y = 3/2x + 6

If a system of linear equations has one solution, what does this mean about the two lines? 

• Parallel lines
• the same line 
• Intersecting lines

Parallel Lines never intersect because...

• they have the same slopes. 
• they have the same y-intercept.
• they have different slopes.
• they have different y-intercepts. 

What is the solution to the following system?

2x - 3y = -1

y = x - 1

(a)  

What is the solution to the following system?

y = -2

4x - 3y = 18

(a)  

Which graph represents the following system?

y = x + 5

y = -5x -1

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