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2 years ago

Which line contains the point (1, -3)?

Mathematics

1 answer:

xz_007 [3.2K]2 years ago

4 0

Answer:

Step-by-step explanation:

Put the values of x = 1 and y = -3 to the equations of a line and check the equality:

1. 4x - y = 7

4(1) - (-3) = 4 + 3 = 7 CORRECT

2. 2x + 5y = 4

2(1) + 5(-3) = 2 - 15 = -13 ≠ 7

3. 7x - y = 15

7(1) - (-3) = 7 + 3 = 10 ≠ 15

4. x + 5y = 21

1 + 5(-3) = 1 - 15 = -14 ≠ 21

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Let suppose that function $f$ is continuous and integrable in the given intervals, by integral definition of average we have that:

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