Astore is having a sale on trail mix and jelly beans. for
2
pounds of trail mix and
3
pounds of jelly beans, the total cost is
$14
. for
6
pounds of trail mix and
5
pounds of jelly beans, the total cost is
$28
. find the cost for each pound of trail mix and each pound of jelly beans.

2t + 3j = 14 multiply by -3
6t + 5j = 28

-6t - 9j = - 42 (result of multiplying by -3)
6t + 5j = 28
add
-4j = - 14
j = -14/-4
j = 3.50

2t + 3j = 14
2t + 3(3.50) = 14
2t + 10.50 = 14
2t = 14 - 10.50
2t = 3.50
t = 3.50/2
t = 1.75

so the trail mix (t) costs 1.75 per lb and the jellybeans (j) costs 3.50 per lb

The correct answer would be shape of function b = 2× slope of function a.