Sequences
Write the next term in the sequence: 15, 11, 7...
3
Simplify:
x + x + x + x + 5
4x + 5
Solve: 2x = 22
x = 11
What integer values are solutions to 3 < x < 8?
4, 5, 6, 7
What is an integer?
A positive or negative whole number
Write the next term in the sequence: 2, 4, 8, 16...
32
Expand: 5(2x + 8)
10x + 40
3(x + 5) = 30
x = 5
Solve the inequality: 2x - 5 < 11
x < 8
Describe how you would draw the inequality: x < 7
An open circle on 7 with the arrow pointing to the left.
The nth term of a sequence is 7n - 2. Find the 20th term.
7(20) - 2 = 138
Simplify:
4a + 5b - 3a + 10 + 3b - 2
a + 8b + 8
Solve: 25 - 5x = 10x - 5
x = 2
Solve the inequality: 10 - 3x > 31
x < 7
What's the difference between an equation and an identity?
Identities are ALWAYS true. Equations are only true for one value of x.
Find the missing terms in the arithmetic sequence:
____, 6, _____, 14, _____
2, 6, 10, 14, 18
Jerry is 35 years old. Seth is x years younger than Jerry.
Write an expression for Seth's age.
35 - x
Solve: (2 + x)/5 = 10
x = 48
Write the inequality given by the graph with an open circle on 5 and the arrow pointing to the right.
x > 5
Write the first five square numbers.
1, 4, 9, 16, 25...
Find the nth term of this sequence: 3, 5, 7, 9...
2n + 1
Expand and simplify: 3(x + 5) - 2(x - 4)
x - 7
Solve 15 - 2y = 7
x = 4
Solve the inequality: 3 < 2(3 - x)
x < 3
The nth term of a sequence is 5n - 1. Write the first first 5 terms of the sequence.