The variables x
x
and y
y
vary directly. use the values to find the constant of proportionality, k
k
. then write an equation that relates x
x
and y
y
. write any fractions in simplest form.

y=45; x=40
y=45; x=40

response - incorrect.

k=
k=
cno response given

y=
y=

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.

4400

step-by-step explanation:

so, converting firstly the mixed fractions to improper fractions and then "adding".