Which of the following is a linear function?

Mathematics

1 answer:

Black_prince [1.1K]3 years ago

6 0

Answer:

Step-by-step explanation:

the only it has constant rate of change (slope, gradient or derivative at every point is equal)

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mestny [16]

Easy :).

Remove the flat rate to see how much money she has to spend: 10 - 1.95 = 8.15.

We have 8.15 (remaining money) / 0.60 (per mile) = 13 miles (or <span>13.5833333333 [copy pasted from a calculator moderators] but I assume you want a rounded version)</span>

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Check the picture below, let's use those two points on the line to get its slope.

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Step-by-step explanation:

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Can you help me with this question?

Rufina [12.5K]

Answer:

16.2

Step-by-step explanation:

The angle internal to the triangle at B is the supplement of the one shown, so is 65°. That is equal to the angle internal to the triangle at D. Since the vertical angles at C are congruent, the two triangles are similar by the AA theorem.

Corresponding sides of similar triangles are proportional, so we can write the proportion shown in the attachment:

BC/FC = DC/AC

BC = FC(DC/AC) = 21.6(7.2/9.6)

BC = 16.2 . . . . matches the first choice

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