Is that the Algebra work/practice book? If so, go into algebra nation and they have videos where they go step by step through the questions. Hope this helps?
It doesn’t have an inverse because it doesn’t pass the horizontal line test
The x-intercept is the point on the graph where it crosses the x-axis. It’s also the value of the x-coordinate when y = 0.
To find the x-intercept, set y = 0:
-5x + 1/5(0) = 15
-5x + 0 = 15
-5x = 15
Divide both sides by -5:
x = -3.
Therefore, the x-intercept is (-3, 0).
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To the nearest penny, c = $6,252.50
Total of payments = amount financed + c = $26,752.50
Total of payments ÷ number of payments = monthly payment = $445.88
