Answer:
The answer is 15
Step-by-step explanation: They give you the answer for x, f(x) = f(2)
f(2)=2(2)^2 + 6(2) - 5 f(2)=2(4) + 6(2) - 5 f(2)=8 + 12 - 5 f(2)=15
Your #5 solution is already correct.
A linear function has the form y=mx+b
you have noticed that y increases by 5 for every 10 steps along x. Therefore, your slope m is 5/10=1/2.
b is your y value at x=0
so y=(1/2)x+5
Additionally, you can calculate it with 2 points
using (10, 10) and (20, 15) and the elimination method just inserting x and y into the basic form
I:10=10m+b
II:15=20m+b
subtraction of II from I:
-5=-10m
-1=-2m
->m =1/2
insert this in I again:
10=10*(1/2)+b
10=5+b
5=b
again y=(1/2)x+5
Answer:
a) h: Number of hours
b) Slope of function
c) y-intercept
Step-by-step explanation:
We are given the following in the question:

The above function tells us about amount of money Amy has in her savings after each hour of work.
a) value of "h"
The above function tells us about the money saved by Amy after each hour of work.
Thus, h here stands foe the number of hours.
b) meaning of the coefficient h
Comparing the given function to a linear function:

Thus, coefficient of h is the slope of the function and tells the change in amount of money saved by Amy per unit hour or it tells the change in amount of money when there is a unit increase in hour.
c) meaning of constant
The constant is the y-intercept and tells the amount of money saved by Amy after she have worked for zero hours.
Answer:
in the point slop form y=2x+8
the slope is 2
the y intercept is 8
Answer:
-57
Step-by-step explanation:
Put the value of x where x is and do the arithmetic.
-7·9 +6 = -63 +6 = -57