Quizizz#2 - IXL THQ Replace grade for 1 catagory.

Which is the best method for solving this system of equations?

-4x-2y=-12

4x+8y=-24

• Substitution

• Elimination

• Guess & Check

Which is the best method for solving this system of equations?

x-y=11

2x+y=19

• Elimination

• Substitution

• Fibonacci

Which is the best method for solving this system of equations?

-6x+5y=1

6x+4y=-10

• Substiution

• Polynomialution

• Elimination

Which is the best method for solving this system of equations?

8x + y = 12

y = -2x + 3

• Substitution

• Coordinate

• Elimination

Which is the best method for solving this system of equations?

2x - y = 4

y = -2x + 8

• Substitution

• Elimination

• Equal Values

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which is the best method for solving this system of equations?

y = -4x - 8

y = 3x + 3

• Illumination

• Graphically

• Elimination

Which is the best method for solving this system of equations?

x = 12y - 2

x + 3y = 4

• Substitution

• Graphically

• Elimination

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

Tags

CCSS.8.EE.C.8A

The system below has the same m value (slope)but different b values (y-intercept). This means they are parallel. So what is the solution to the system:

y = 4x - 5

y = 4x - 8

• Infinite Many

• None

• One

A student is freaking out because they only see 1 line on a graph but they know there should be 2 because it is a system, and a system means more than 1. What is the student missing?

• If 2 lines have infinite solutions they overlap and look line one line.

• If 2 lines have one solution we erase the one that has a negative slope.

• If 2 lines have no solutions we don't bother to graph the second line.