Question

Consider the following equations:

−x − y = 1
y = x + 3

If the two equations are graphed, at what point do the lines representing the two equations intersect?

A. (−1, 2)

B. (−2, 1)

C. (1, −2)

D. (2, −1)


Question 2 (Multiple Choice Worth 4 points)

Consider the following set of equations:

Equation R: −3y = −3x – 9
Equation S: y = x + 3

Which of the following best describes the solution to the given set of equations?

A. No solution

B. One solution

C. Infinite solutions

D. Two solutions


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Answer 1

Solve each using substitution or elimination.