What are these symbols called:
< , ≤ , > , ≥?
(The answers are not less then, greater then, etc.)
What is
Inequalities
-2 is less than -10
False
Solve the Inequality
x + 4 < 10
What is:
x < 6
Solving Inequalities
Solve for x.
4x+3<7
What is:
x <1
Write and solve an inequality for the following problem. Remember to define your variables.
Carla had some apples. After eating 2 apples, she still had more than 8 apples left. What is the smallest number of apples Carla could have started with?
x-2>8
x>10
Carla had at least 10 apples to start with.
When graphing inequalities, which symbols have an OPEN circle?
< Less Than
> Greater Than
We use an open circle to represent the inequalities < and > ?
True
Solve the Equation:
f - 9 < -58
What is:
f < -49
Solving Inequalities
Solve for x.
-b-2>8
What is:
b<-10
Tom had some candies. After giving away 5 candies to his friend, he had at least 12 candies remaining. What is the minimum number of candies Tom originally had?
x-5\ge12
x\ge17
Tom must have originally had at least 17 candies
When graphing inequalities, which inequality symbols have a CLOSED circle?
≤ : Less Than or Equal to
≥ : Greater than or Equal to
If graphing x < 5, we would put an open circle on 5 and shade to the right.
False.
Solving Inequalities
Solve for x.
2x > 8
What is:
x > 4
\frac{m}{3}-3 \le -6
m\le -9
Write and solve an inequality for the following problem. Remember to define your variables.
Mia has some stickers. If she quadruples the number of stickers she has and then subtracts 3, she ends up with more than 17 stickers. What is the smallest number of stickers Mia could have?
4x-3>17
x>5
Mia must have at least 6 stickers
Which direction do we shade for x < -3 ?
What is
Left
Is the statement true
2x > -6
x = -3
False
Solve the Inequality
-4x < 12
NOTE: The answer is NOT an integer.
x<-3
Solve for v.
-4(3+v)>56
v < -10
Write and solve an inequality for the following problem. Remember to define your variables.
Keith has $500 in a savings account at the beginning of the summer. He wants to have at least $200attheend of the summer. He withdraws $25 per week for food, clothing, and movie tickets. How many weeks can Keith withdraw money from his account?
x\ge12
No more than 12 weeks
Is the following inequality graphed correctly?
x < 6
No, the graph shows x > -6
Is the statement true?
2k + 30 > -10
k > -20
True
Solve the Inequality
z/30>70
z > 2,100
Solve for a
\frac{-9+a}{15}>1
a>24
Write and solve an inequality for the following problem. Remember to define your variables.
A taxi charges a flat rate of $1.75, plus an additional $0.65 per mile. If Erica has at most $10 to spend on the cab ride, how far could she travel?
x<12.7
She could travel 12.7 miles or less