Triangle abc has been rotated 90° to create triangle def. using the image below, prove that lines bc and ef have the opposite and reciprocal slopes. you must show all of your work to receive credit.

nothjing

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

you have to find the same variables -3n - 5n so this would be -3n +(-5n) which equals -9n