2. C
Transform the equations into point slope or slope intercept form. Then graph.
3. A
Find difference between numbers in the sequence: Difference between each number is 4. You can say that the number (n) will add 4 each time in the sequence... if that makes any sense
4. D
The photo length and width will be multiplied by the same number to keep proportions. Use properties of multiplication and division to solve.
Hope this helps!