Answer:
a. When X=10
b. When X=8
c. There are more type A when -1>X>8, there are more type B when -2<X<8
sorry can't help with the graph
Explanation:
I used the online TI-84 calculator.
1. Press "Y="
2. Type each equation on separate lines
3. Press "2nd"
2. Hit "graph" the table shows the answers.
If you just hit graph without the "2nd" button the graphs too small for the to show the whole thing and I can't remember how to fix that sorry.