Solve Systems Graphing and Substitution

Buzz graphed two lines in order to find the solution to a given system of equations.
What is the solution?

• (-1, 4)
• (1, -4)
• (-4, 1)
• (4, -1)

Tags

CCSS.8.EE.C.8B

What is the solution to the system?

• (0, 3)
• (1, -1)
• (-3, 1)
• (1, 3)

What is the y-intercept of this graph?

• (0,1)
• (0,-2)
• (0,0)
• (0,3)

This system has _____ solutions

• 0
• 1
• 2
• Infinitely many

Tags

CCSS.8.EE.C.8A

What is the solution?

• One Solution
• No solution
• Infinitely Many Solutions

The solution to a system of equations is any ordered pair that makes both equations true. 

• TRUE
• FALSE

Tags

CCSS.8.EE.C.8B

How many solutions does this system of equations have?

• one solution

• two solutions

• no solutions

• All of the above

Solve the system by substitution.
 
5x + 4y= −14
y =  −7x  −  15 

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

Solve by substitution.

• (2, 5)

• (5, 1)

• (1, 5)

• (5, 2)

y = 2x -3
y = 2x -3 has infinitely many solutions because...

• They never intersect
• They are the exact same line and intersect at every point
• They are the exact same line, but intersect at only one point