Question

what is the solution of the system
4x-y=-3
6x-y=-8

a. (5,5.5)
b. (-2.5,-7)
c. (-2.5,2.2)
d. (2.5,-7)

Answer 1

You could solve the system or you could test options.

Do you have a preference?

Answer 2

which one would be quicker and easier?

Answer 3

@Directrix

Answer 4

the easier is test option but solving is better for you....

Answer 5

anyway testing is taking the x value and put it in the equation and see if y would equal the y point

Answer 6

i tested it, would it be (-2.5,-7)?

Answer 7

Hold, let me check.

Answer 8

Correct.

Note: If you are allowed to use this type technology, click on the link:

http://www.wolframalpha.com/input/?i=4x-y%3D-3+and++6x-y%3D-8

Answer 9

ok thankyou

Answer 10

You are welcome.