Simultaneous Equations Quiz

What are the two equations given in the video?

• 3x - y = 4 and 2x + 2y = 16

• 3x + y = 5 and 2x - 2y = 15

• 3x + y = 4 and 2x - 2y = 16

• 3x - y = 5 and 2x + 2y = 15

In the substitution method, what is the first step to solve for y?

• Move x to the other side

• Subtract 4 from both sides

• Move y to the other side

• Add 4 to both sides

After substituting y in the second equation, what is the resulting equation?

• 2x + 2x - 4 = 16

• 2x + 3x - 4 = 16

• 2x + 6x - 8 = 16

• 2x + 6x + 8 = 16

What is the value of x found using the substitution method?

• x = 4

• x = 3

• x = 2

• x = 5

In the elimination method, what is done to the first equation to help eliminate y?

• Add 2

• Subtract 2

• Multiply by 3

• Multiply by 2

What is the result of adding the modified equations in the elimination method?

• 8x - 2y = 24

• 8x = 24

• 6x - 2y = 8

• 2x + 2y = 16

What is the final value of y found using the elimination method?

• y = 6

• y = 5

• y = 4

• y = 3

What form should the equations be in to use the graphing method?

• ax + by = c

• ax = by + c

• y = mx + b

• x = my + b

What is the intersection point found using the graphing method?

• (2, 4)

• (3, 5)

• (4, 6)

• (5, 7)

What is the purpose of using different methods to solve the equations?

• To confuse the students

• To find multiple solutions

• To choose the most suitable method

• To make the process longer