We have the following function:
So if we graph this function we will get the Figure below. Thus, let's study both the equation and the graph to get some conclusions. Therefore, we can assure these statements:
First. The function is defined only for
as shown in the Figure. This is also true because of
where
must be greater (or equal) than zero.
Second. The range of the function are the values of
.
Third. If
creases then
always creases, too.
Answer:
B
Step-by-step explanation:
If stuck on a graphing question you can use Desmos Graphing Calculator, it's a free online resource.
2x + -7 +8 = -x+16
2x + 1 = -x +16
2x +1 -1= -x +16 -1
2x+x = -x +x + 15
3x = 15
3x/3 = 15/3
x= 5
2(5) + -7 +8 = -5+16
10 +-7+8 = 11
11=11
The situations can be represented by the exponential function f(x)=60x1.15^x
After 7.86 years the value of the investment will be three times the initial value (If you round to the nearest dollar)
After 8 years the value of the investment will be $184.00 (If you round to the nearest dollar)
<span>multiplying and dividing is similar adding and subtracting. When the signs are different the answer is negative. When the signs are the same the answer is positive</span>