# math 1

Example 3: The table below shows the amount a banquet hall charges to feed different sized groups of people

Number Of People | COST
10 \$200
14 \$252
21 \$441
23 \$471

Using a linear model, what is the approximate residual value of the cost to feed 21 people
A.\$8 B.\$12 C.\$15 D.\$21 E. \$34 F. \$47 G. \$52 H. \$43 I. \$32 J. \$25 K. \$19 L. \$5

~I got K. \$19 I dont understand this problem please help me i did everything with a calculator

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1. so, what were your calculations? If we are to analyze why your answer may be wrong, show us how you got it.

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2. I did it on a calculator and followed my teacher steps dont know how to explain

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3. rubbish. If you followed the steps, what were they?

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4. On moodle its a video.

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