Integers
3 - (-7)
10
x = -3
Choose any y.
X will always pass through -3.
e
0
Rod is paid an overtime rate of $25 per hour after his basic wage of $600 per week. Write a linear equation to represent Rod's total pay if he works overtime.
y = 25x + 600
+3 - 3
0
-6 - 8
-14
y = 1.5
Choose anything for x.
Y always passes through 1.5
d
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A 2 foot tall pine tree was planted during the school's observation of Earth Awareness Week in 1990. The trees have grown at an average rate of 3/4 foot per year. Write a linear model that gives the height of the tree in terms of the number of years since they were planted.
y = 3/4x + 2
yes
- 12 - (-3)
-9
y = -x - 2
x: 1, 0, -1
y: -3, -2, -1
c
-1
An airplane 30,000 feet above the ground begins descending at the rate of 2000 feet per minute. Assume the plane continues at the same rate of descent. Write an equation to represent the height of the airplane in feet above the ground after x number of minutes.
y = 30,000 - 2000x
Are x = -5 and y = 5 parallel?
No
15/-3
-5
y = x/3 - 3
x: 3, 0, -3
y: -2, -3, -4
g
5/4
A city parking garage charges a flat rate of $3.00 for parking 2 hours or less, and $0.50per hour for each additional hour. Write a linear model that gives the total charge in terms of additional hours parked.
y = 0.5x + 3
Solve for x.
12x - 4 = 32
x = 3
-6 * -6
36
y = 1/2x + 1
x: 2, 0, -2
y: 2, 1, 0
b
-3/4
Wally and Cobb are starting a catering business. They rent a kitchen for $350 a month, and charge $75 for each event they cater. If they cater 12 events in a month, how much do they profit?
y = 75x - 350
Solve for x.
1 = 2/3x - 1
x = 3