Enter values for x and y in the table to plot points in the
raph.
These data points represent the relationship between
the size of a house (in 1000 square feet) and its price
(in $100,000)
3.6
3.2
(1.2, 1.7), (1.4, 2), (1.5, 2.2), (1.6, 2.3), (1.8, 2.5), (1.9,
2.6), (2.1, 2.9), (2.2, 2.8), (2.4, 3.4), (2.7, 3.1)
2.8
2.4
Use the trend line to predict the cost of a 2,000-square-
foot house.
1.6
1.2
1.6
2
2.4
2.8
3.2
3.6
Intro
Done

were is the equation

-2 is the right

let's add {f(x)=x+1}f(x)=x+1 and {g(x)=2x}g(x)=2x together to make a new function.

f(x)+g(x) =(x+1)+(2x)=x+1+2x=3x+1

let's call this new function hh. so we have:

{h(x)}={f(x)}+{g(x)}{=3x+1}h(x)=f(x)+g(x)=3x+1

we can also evaluate combined functions for particular inputs. let's evaluate function hh above for x=2x=2. below are two ways of doing this.

method 1: substitute x=2x=2 into the combined function hh.

h(x)

h(2)

​    

=3x+1

=3(2)+1

=7

​ since h(x)=f(x)+g(x)h(x)=f(x)+g(x), we can also find h(2)h(2) by finding f(2) +g(2)f(2)+g(2).

first, let's find f(2)f(2):

f(x)

f(2)

​    

=x+1

=2+1

=3

​  

now, let's find g(2)g(2):

g(x)

g(2)

​    

=2x

=2⋅2

=4

​  

so f(2)+g(2)=3+4=\greend7f(2)+g(2)=3+4=7.

notice that substituting x =2x=2 directly into function hh and finding f(2) + g(2)f(2)+g(2) gave us the same answer!

its adding 5.5 each time

step-by-step explanation: