A surf instructor has an initial fee of $12 and charges $8

Mathematics

1 answer:

Nataliya [291]3 years ago

7 0

Given:

A surf instructor has an initial fee of $12 and charges $8 per hour for lessons.

To find:

The y-intercept and its location on the graph.

Solution:

Initial fee = $12

Variable fee = $8 per hour.

Let the total fee be y for x hours. Then,

$y=12+8x$

Put x=0, to find the y-intercept.

$y=12+8(0)$

$y=12+0$

$y=12$

Therefore, the y-intercept is 12.

Table of values for $y=12+8x$ ,

x y

0 12

-1 4

Plot (0,12) and (-1,4) on a coordinate plane and connect them by a straight line.

Clearly, the y-intercept is located at (0,12).

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