To determine the Earnings of Shelley last week, we need to make relations with the values that are given. We let x as the total amount she earned last week by x and y as the additional amount she earned this week We do as follows:
20% additional amount she earned this week = y / 72 - y
y = $ 12
x = 72 - 12 = $60 total earnings last week
Answer:
A) reflection over the x-axis and a vertical translation down by 5 units
Step-by-step explanation:
- Making the output negative reflects the graph over the x-axis
- subtracting or adding a constant from/to the function translates it down/up (along the y-axis) by that many units
