Tell whether the function is linear. Then evaluate the function when x=-6 times f(x) = 3x + 4
1 answer:
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Answer:
$42.40
Step-by-step explanation:
The horizontal axis is in fractions.
The three lightest are two pounds & one
pounds. Each cost $4.40 per pound.
So cost = 4.40(5/8+5/8+6/8) = $8.8
Remaining costs 4.80 per pound. We add up the remaining and multiply by 4.80 to get their cost.
cost =
Hence, total cost = 8.8 + 33.6 = $42.40