1. No category

3.3 Moving Straight Ahead Solving Equations and Inequalities
E. 1. How many cakes can Fabian make if he wants his expenses to be
less than $2400 a month? Show your reasoning.
A. 1. In the equations for I and E, what information do the yintercepts give you? ___________________________________
E. 2. How many cakes can Fabian make if he wants his expenses to be
greater than $2400 a month? Show your reasoning.
2. What do the coefficients of n represent? ________
E.4 For each inequality find the number of cakes Fabian needs to
B. Fabian sells 100 cakes in January.
1. What are his expenses? _____
make in a month, graph on a number line and explain how you found
What is his income? ______
your answer.
2. What is his profit? _________
Describe how you found your answer. ______________________
____________________________________________________
____________________________________________________
C. Write an equation the represents the profit, P for selling n cakes.
Describe how you can use this equation to find the profit. ________
____________________________________________________
2. Fabian uses the equation P = 4.95n – 825 to predict the profit.
Does this equation make sense? _____ Explain. ________________
____________________________________________________
D. The break-even point is when expenses equal income (E = I).
1. Write an equation to find the number of cakes n needed to break
even. _________________________
How many cakes does Fabian need to make in order to break
even?______
a. E < 1.475
# needed____
____________________________________________________
____________________________________________________
b. I > 1,640
# needed____
____________________________________________________
____________________________________________________
c. P > 800
# needed____
____________________________________________________
____________________________________________________