There are 620 students at irena's school.
of these students,45% have attended at least one other school.

a) how many students have attended more than 1 school?

students have attended more than 1 school.

b) how many students have attended just 1 school?

students have attended just 1 school.

620/.45  or 620/45

Step-by-step explanation:

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.

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)