Astudy of several cities shows a positive correlation between the percent of people biking to work and the percent of people spending their vacation time at home
which is most likey true
a) the correlation is due to a third variable cost of gas
b) vacationing at home makes people want to ride their bike
c) the correlation is due to a third variable cost of milk
d) bike riding makes people want to vacation at home

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)

a.)the line for function b is steeper

the answer on ed. is:

c. "the graph of f(x) has exactly two x-intercepts."

hope i could someone! : )