Answer:
Step-by-step explanation:
Given the equation of a line expressed as y = 3x-1, we are to find y = f(x) for the following values of x in the table.
If y = 3x-1, then f(x) = 3
When x = -1
f(-1) = 3(-1)-1
f(-1) = -3-1
f(-1) = -4
<em>Hence when x = -1, f(x) = -4</em>
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When x = 0
f(0) = 3(0)-1
f(0) = 0-1
f(0) = -1
<em>Hence when x = 0, f(x) = -1</em>
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When x = 2
f(2) = 3(2)-1
f(2) = 6-1
f(2) = 5
<em>Hence when x = 2, f(x) = 5</em>
Kelly traveled 50 miles with 20 gallons, 50/20 = 2.5 miles per gallon
Andy traveled 78.75 miles with 15 gallons, 78.75 / 15 = 5.25 miles per gallon
Rick traveled at 4.8 gallons per mile
Andy traveled furthest.
Answer: .69
Step-by-step explanation:
Answer on khan
Answer: $1.62
Step-by-step explanation:
9% = 0.09
18 * 0.09 = 1.62