Inequalities
the cost, c, is less than $100
c < 100
tickets sold, t
money made, m
Which is dependent and which is independent?
money made, m, is the dependent variable
tickets sold, t, is the independent variable
How would you graph the inequality x > 1?
put an open circle at 1 and draw a ray to the right
y = x - 6
if x = 15
what is y = ?
y = 9
y = 6 x + 1
if x = 2
what is y = ?
y = 13
the length of the driveway, L, is longer than 7 feet
L > 7
the number of hours worked, h
the amount of money earned, m
Which is dependent and which is independent?
money earned, m, is the dependent variable
hours worked, h, is the independent variable
How would you graph the inequality x ≥ 11 ?
put a closed circle at 11 and draw a ray to the right
y = X × 4
if X = 6
what is y = ?
y = 24
y = 2 x + 5
if x = 6
what is y = ?
y = 17
the fewest number of minutes, m, the student should study is 35 minutes
m ≥ 35
the amount of money spent, s
the amount of money remaining, r
Which is dependent and which is independent?
amount of money remaining, r, is the dependent variable
amount of money spent, s, is the independent variable
How would you graph the inequality x ≤ 4?
put a closed circle at 4 and draw a ray to the left
y = x ÷ 3
if x = 21
what is y = ?
y = 7
y = 11 x + 7
if x = 6
what is y = ?
y = 73
the distance, d, is at least 10 miles
d ≥ 10
the distance traveled, d
the speed of the car driving, s
Which is dependent and which is independent?
distance traveled, d, is the dependent variable
speed of the car driving, s, is the independent variable
How would you graph the inequality 7 < x ?
put an open circle at 7 and draw a ray to the right
d = 60 x t
if t = 5
what is d = ?
d = 300
a = 5 b - 1
if b = 3
what is a = ?
a = 14
up to 8 people, p, went to the party
p ≤ 8
the number of calories burned, c
the number of miles ran, m
Which is dependent and which is independent?
calories burned, c, is the dependent variable
miles ran, m, is the independent variable
How would you graph the inequality 3 ≥ x ?
y = x ÷ 15
if x = 135
what is y = ?
y = 9
y = 1/2 x - 3
if x = 20
what is y = ?
y = 7