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Quiz 5-1B: Solving Systems of Equations

Last updated about 3 years ago

5 questions

Required

2

2

3

3

3

Question 1

1.

Question 2

2.

Question 3

3.

Solve the system of equations below algebraically.
y=5x+20
y=-3x+4

Show your answer is in (x,y) form. Show your steps for part marks.

Question 4

4.

Explain why the system of equations below will not have a solution. Give one reason that you are sure of your answer.
y =2x+36
y=2x-5

You may type your explanation and/or show your work, but be sure to be very clear in your explanation.

Question 5

5.

Solve the system of equations by graphing.
y=\frac{3}{4}x+2
y=-\frac{1}{2}x-3

When we solve a system of equations, what are we trying to find? There are 2 correct answers.

The (x,y) values where two lines intersect.

The values for the two variables that make both equations true.

Only the x.

Only the y.

What is the solution to this system of equations?

(3,-12)

(-3,12)

(-3,-12)

(3,12)

None of these.