I believe the slope intercept form would be: y=3x-2
Area of a triangle is base x height so for the first one you would have to do:
A= 6x14
So area equals
84
The answer to the question
HELLO DEAR,
GIVEN:-
8cos²x + cosx - 9
8cos²x + 9cosx - 8cosx - 9
cosx(8cosx + 9) - (8cosx + 9)
(cosx - 1)(8cosx + 9)
I HOPE ITS HELP YOU DEAR,
THANKS