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3 years ago

A pair of equations is shown below:

Mathematics

1 answer:

horrorfan [7]3 years ago

4 0

Answer:

A. x=2, y = 7.

B. (2, 7).

Step-by-step explanation:

A. You can eliminate y by subtracting the equations:

y = 8x - 9

y = 4x - 1 Subtract:

0 = 4x - 8

4x = 8

x = 8/4 = 2.

Now substitute for x in the first equation:

y = 8(2) - 9 = 7.

Check in the second equation:

y = 4x - 1

7 = 4(2) - 1 = 7. Check is OK.

B. On the graph they will intersect at the point (2, 7).

They will intersect here because the values x=2 and y=7 satisfy both the 2 equations.

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2 years ago

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3 years ago

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