Slope of tangent line = dy/dx = 2x+3
k is y_intercept of tangent line
2x+3 = -1
x = -2
y = (-2)^2+3(-2)+1 = -1
tangent line passes through point (-2,-1)
k = x+y
k = -2 -1
k = -3
Answer:
11 lollipops
18 candy bars.
Step-by-step explanation:
Let the number of lollipops sold be x and the number of candy bars sold be y. Then:
x + 1.25y = 33.50
y = x + 7
-x + y = 7 Adding this to the first equation:
2.25y = 40.50
y = 18
so x = 18-7 = 11.