Hello,
First, you must understand that
(f-g)(x) means f(x)-g(x) it is the difference of two functions :
f(x)=2x+4 and g(x)=3x-7
f(5)=2*5+4=10+4=14
g(5)=3*5-7=15-7=8
So, (f-g)(5)= f(5)-g(5)=14-8<u>=6</u>
Answer A: none of the choices are correct.
An other way to do it:
(f-g)(x)=f(x)-g(x)=2x+4-(3x-7)= 2x-3x+4+7=-x+11
if x= 5 then (f-g)(5)=-5+11<u>=6</u>
The ratio of yellow to total is 2 to 8, or 1:4 if you divide both by 2. So the answer is B.
X>-2
any point to the right of x=-2 is a solution
y<u><</u>2x+7
to find, plot 2 points by subsitution
when x=0, y=7
when x=1, y=9
plot the points (0,7) and (1,9)
the point is (-1,4)
draw a line through them
then try a point to see which side to shade on
is 0,0 in that shaded reigon?
no
shade below
look at shaded reigon
Answer:
Zero
Step-by-step explanation:
The opposite of negative three is positive three so positive three minus negative three equals zero