please show me the steps to work this problem out 3 Given th

please show me the steps to work this problem out.

3. Given the following function, answer the following: U.S. Vehicle Sales: Light Truck Market Share 1963 to 2010 (est.) A. What was the percentage of light truck market share in 1970? B. What year did the percentage first reach 30%? C. What was the maximum percentage and when did that occur?

Solution

Entire graph show light truck market share from 1963 to 2010

from the above graph

in X-axis years are given. in Y-axis percentages are given

If we observe that years from 1965 to 1970 there 4 lines in between. These 4 lines represents 1966, 1967, 1968, 1969

next 1970 to 1975 in between 4 lines represent 1971, 1972, 1973, 1974. Like this for all years

If we observe y axis there is a range between 10% to 20% and 20% to 30% and so on

Year line is vertical and percentage line is horizontal.

for question A)

If we observe the graph from 1970 year vertical line, it meets at line at 17%

So the answer is 17%

for question B)

From the above graph the line touches 30% mark for the first time in 1985 year

So answer is 1985

for question C)

We can see that the graph touches 56% in 2004 and downs in next year.

So the maximum percentage is 56% and it occured in 2004 year