Plug in 3 for x so
2(3)+2
6+2=
8
The evaluation is 8
Answer:
Step-by-step explanation:
Given
of child's age
Solving (1):
Determine the cost function.
Represent the years as y.
So, we have:
* y
Convert 25 cents to dollars.
So, we have:
The cost amount is then:
--- This is the cost function
Solving (b): Cost of 9 years old.
In this case;
Substitute 9 for y in
--- This is the cost for a child of 9
(30/3-17/3)x(-2)+x=26/3
(13/3)x(-2)+x=26/3
-26/3+x=26/3
X=0
Use the given slope and point to substitute into the point-slope formula
y - y1 = m (x - x1)
Slope-intercept form:
y = -5
Point-slope form:
y + 5 = 0 • (x + 7)