Any fraction , decimal or rational can be categorized as rational numbers , but in fraction
For example x/y = y is not equal to 0
Step-by-step explanation:
Draw picture of 2 points (-1, 7), (1, 5) at line x and y
and use the formula
slope = (y2 - y1)/(x2 - x1)
If convexity to the right slope +
If convexity to the left slope -
Answer:
<em>The predicted sales are 7.46 billion dollars</em>
Step-by-step explanation:
<u>Function Modeling</u>
We are given two points that represent the Online jewelry sales. The two points are ( 2003 , 2 ) and ( 2013 , 5.64 ). The second coordinate is expressed in billion dollars. To better represent the function, let's count the time not in absolute years, but in years after 2003. The points now are ( 0 , 2 ) and ( 10 , 5.64 ).
The function to represent the sales (S) will be a line, which general equation is
Plugging in the points
Operating and rearranging
Now we use the model to predict the online sales for 2015, or t=15
The predicted sales are 7.46 billion dollars