Vincent has been collecting 13 rocks per week. he gives 7 rocks away to a friend. if w represents the number of weeks that vincent has been collecting rocks, which expression represents the number of rocks vincent has left?

13 rocks per week for w weeks is 13w rocks.

He gives away 7 rocks, so now he has 13w - 7.

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

glide reflection.

its mainly because the pattern will be infinite and will never end. it will look like a gilder or like a filpbook when set to motion.