Solving Systems by Graphing

What is the solution?

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

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. 

When you graph the exact same equation twice,

• you will have no solution. 
• you will have one solution.
• you will have infinite solutions. 
• you will graph a giraffe. 

Which of the following is in standard form?

• $y=10x-7$

• $y-5=3\left(x-1\right)$

• $5x-y=12$

• $6x+2y-15=0$

What is the solution to this system of equations?
 $y=x-2$  
 $y=-2x+1$  

• (1, -1)

• (-1, 1)

• (0, -2)

• (2, 0)

Which of the following is in slope-intercept form?

• $y=10x-7$

• $y-5=3\left(x-1\right)$

• $5x-y=12$

• $6x+2y-15=0$

What is the
slope-intercept form
of the equation
-8x+2y=4

• none
• y=2-4x
• y=4x+2
• y=4x-8y

How can you tell if a point is a solution to a system?

• It makes the first equation true.
• The (x,y) coordinates satisfy both equations
• It makes logical sense
• It makes neither equation negative

Is the ordered pair (2,1) a solution to the system?

• Yes

• No

Is the ordered pair (4, -1) a solution to the system of equation?

• Yes

• No