HOW DO YOU SEE IT? Match the description of the situation with its graph. Then write the equation of the line. [The graphs are labeled (i), (ii), (iii), and (iv).] (a) You are paying $10 per week to repay a $100 loan. (b) An employee is paid $12.50 per hour plus $1.50 for each unit produced per hour. (c) A sales representative receives $50 per day for food plus $0.58 for each mile traveled. (d) A computer that was purchased for $600 depreciates $100 per year.
HOW DO YOU SEE IT? Match the description of the situation with its graph. Then write the equation of the line. [The graphs are labeled (i), (ii), (iii), and (iv).] (a) You are paying $10 per week to repay a $100 loan. (b) An employee is paid $12.50 per hour plus $1.50 for each unit produced per hour. (c) A sales representative receives $50 per day for food plus $0.58 for each mile traveled. (d) A computer that was purchased for $600 depreciates $100 per year.
HOW DO YOU SEE IT? Match the description of the situation with its graph. Then write the equation of the line. [The graphs are labeled (i), (ii), (iii), and (iv).]
(a) You are paying $10 per week to repay a $100 loan.
(b) An employee is paid $12.50 per hour plus $1.50 for each unit produced per hour.
(c) A sales representative receives $50 per day for food plus $0.58 for each mile traveled.
(d) A computer that was purchased for $600 depreciates $100 per year.
Each semester, a college charges a services fee of $80 plus $40 for each unit taken by a student.
(a) Write a linear equation that gives the total enrollment cost c for a student taking u units.
(b) Complete the table of solutions below and graph the equation.
7
8
16
900
Graph Layers
«
Clear All
850
800
After you add an object to the graph you
Delete
can use Graph Layers to view and edit its
750
700
properties.
650
Fill
600
550
500
450
400
350
No
Solution
300
250
200
150
100
50
2.
3
4
5
6.
7.
8
9.
10 11 12 13 14 15 16 17 18 19 20
O Help
WebAssign. Graphing Tool
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Apply the graph from part (d) to estimate visually the cost of driving the car
150
miles. Then calculate that cost exactly by using the equation from part (a).
Based on the graph, between what two amounts will the cost fall?
A.
$80
and
$100
B.
$100
and
$120
C.
$140
and
$160
D.
$120
and
$140
Using the equation, the cost is
It costs a baker a fixed cost of $420 and a variable cost of $2.10 per cupcake. A cupcake is sold for $4.90 each.
(vii) Using your graph, determine how many cupcakes need to be made to produce revenue of at least $1,029.How much profit is made for this number of cupcakes?
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