Graphing to Solve Systems

What is the solution?
(Hint:  Both lines are graphed over each other)

• One Solution

• No solution

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8A

What would make this system of equations HARDER to solve by graphing at first?

• The slope of the first one is 15

• They are parallel.

Tags

CCSS.8.EE.C.8B

This system has _____ solutions

• no

• 1

• 2

• Infinitely many

Tags

CCSS.8.EE.C.8B

What is the solution?

• 1

• -2

• (1, 2)

• (1, -1)

Tags

CCSS.8.EE.C.8B

Decide if the following statements are true or false about the graph.

Groups:

(a) True

,

(b) False

• The lines will eventually touch, so the system has one solution

• The lines will not intersect, so the system has no solution

• The lines are perpendicular which means they will not ever cross.

• The slope(m) of the lines are equal

• The slopes are equal, so the system has infinitely many solutions

• The line are parallel, so the system has no solution

Tags

CCSS.8.EE.C.8B

Solve the system of equations by graphing.

• (4, 7)

• (3, 5)

• (6, 7)

• (5, 3)

Tags

CCSS.8.EE.C.8B

Solve the system of equations by graphing.

• (-1, 4)

• (1, 0)

• No Solution

• (0, 2)

Tags

CCSS.8.EE.C.8B

Solve the system of equations by graphing.

• (0, 3)

• (5, 5)

• (-4, 6)

• (6, -4)

Tags

CCSS.8.EE.C.8B

Solve the system of equations by graphing.

• (2, -5)

• (2, 5)

• (4, -6)

• (-2, -3)

Tags

CCSS.8.EE.C.8B

Which statement describes Kayla's solutions?

• Her solutions are correct.

• She marked the y-intercepts instead of the x-intercepts.

• She marked the y-intercepts instead of the intersection point of the two lines.

• She marked only the y-intercepts instead of the x- and y-intercepts.

Tags

CCSS.8.EE.C.8B