Part A: the data represent a function because for each value of x, there is a unique value of y.
Part B: from the table, when x = 7, y = 8. from the function f(x) = 2x + 13, f(7) = 2(7) + 13 = 14 + 13 = 27.
Hence f(x) = 2x + 13 has a greater value when x = 7.
Part c: f(x) = 2x + 13 = 75
2x = 75 - 13 = 62
x = 62/2 = 31
Answer:
According to your question, the new balance is $8.27
Step-by-step explanation:
$167.42 - $159.15 = $8.27
7dived by x times 78 gets 22
Answer: No, it is not a direct variation
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Explanation:
The given equation solves to y = x-3, which is not in the form y = kx. So the original equation is not a direct variation.
An example of a direct variation would be y = 5x, where in this case, k = 5.
Visually, all direct variation equation graphs go through the origin.