Answer:
y = 0.8x + 4
Step-by-step explanation:
The slope is 0.8 and y intercept is 4.
Answer:
Step-by-step explanation:

Answer:
Vertical compression
Step-by-step explanation:
To find the transformation, compare the function to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.
Answer:
3/4
Step-by-step explanation:
With regards to the above, since 1/4 of the volunteers are teenagers, the fraction of the volunteers would be
= 1 - 1/4
= 3/4
It therefore means that 3/4 of the volunteers are teenagers.
Let us always base on the present age. We denote this by x. Now, the age he had 2 years ago would then be denoted as (x-2). Let's equate this to 20 years old.
x - 2 = 20
x = 20 + 2
x = 22 years old
He should be 22 years old now.
Let's check the other condition. After 1 year, his age should be (x+1). Let's equate this to 23 years old.
x + 1 = 23
x = 23 - 1
x = 22
Thus, this is possible if Reuben is 22 years old as of the present.