Question

Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution?

y = x + 5
y = –2x – 1

A.(0, 5)
B.(–2, –1)
C.(–2, 3)
D.(0, –1)

Answer 1

The answer would be C

Answer 2

Hi! Whenever you are asked to find the solution to a system of equations using graphing, you should look for the point of interception. First, graph the two lines given using slope intercept form.

Slope intercept form: the number by the x is the slope, and the number standing along is the y-intercept.

After you graphed the two lines, look for the point where they meet. For example, in this problem it would be (-2,3).


And you’re done! The answer to this problem is C. I hope I helped you!! :))