Linear equations are represented by straight line.
The required graph is graph (a).
The given parameters are:
Let x represents the number of weeks, and y represents the number of words in week x.
So, we have:
Substitute 15 for Rate
The above equation means that:
The graph that represents the above ordered pair is graph (a).
Read more about graphs at:
Answer: 6 years old.
Step-by-step explanation:
For this exercise let "x" represents your present age.
According to the information provided in the exercise, you know that In three years, Chad will be three times your present age.
Then, your age in three years can be represented with the following expression:
Knowing at that time Chad's age will be three times yours and you will be half as old as old as Chad, you can write the following equation to represent this situation:
Therefore, the final step is to solve for "x" in order to find its value.
You get that this is:
........................
The feasible region is shown in the picture above. The horizontal axis is the X axis.
If you now draw a family of lines parallel to through the region, increasing $C$, that is, the X-intercept, we will have the maximum value of $C$ when the line passes through the endpoint $(-2,6)$ .
Hence, $C=5(-2)+4(6)=14$
