Answer:
12
Step-by-step explanation:
First,you need to do the cacul of the parenthese,second,you solve by multiply and after that,by substract the answer by 42.
The answer will be 12
I believe it’s 9
If i’m wrong i’m sorry!
God bless
we Know that
The formula to calculate the slope between two points is equal to

Let

substitute the values in the formula



therefore
the answer is the option
