Sequences
What’s the next number? 2, 4, 6, 8, ___
What is 10?
Solve for x: 2x + 3 = 11
What is x = 4?
What does it mean if a system has no solution?
What is the lines are parallel?
What’s the domain of a function?
What is all possible x-values?
What shape does a quadratic graph make?
What is a parabola?
In the sequence 5, 10, 15, 20, what are you doing to get the next number?
What is adding 5?
Rewrite y = mx + b to solve for x
What is x = (y - b)/m?
Solve the system:
y = x + 2
y = -x + 6
What is x = 2, y = 4?
What makes a relation a function?
What is each input has only one output?
Identify the model: y = 5x + 2
What is linear?
Find the 5th term: a₁ = 3, aₙ = aₙ₋₁ + 5
What is 23?
What does the “m” stand for in y = mx + b?
What is the slope?
What method eliminates one variable by adding or subtracting equations?
What is elimination?
What test can you use on a graph to see if it’s a function?
What is the vertical line test?
Identify the model: y = 2(3)^x
What is exponential?
What kind of sequence is 3, 6, 12, 24...?
What is a geometric sequence?
Solve for y: 3x - 2y = 6
What is y = (3x - 6)/2?
Solve using substitution:
x + y = 7
x = 2y
What is x = 4.67, y = 2.33 or fractions: x = 14/3, y = 7/3?
Is this a function? (1, 2), (2, 3), (1, 5)
What is no?
What’s the vertex form of a quadratic equation?
What is y = a(x - h)² + k?
A sequence where each term increases by the same amount is called what?
What is an arithmetic sequence?
Solve for r: A = Prt
What is r = A/(Pt)?
A system has infinite solutions. What does that mean about the lines?
What is the lines are the same/identical?
f(x) = 3x² - 2x + 5. What is f(2)?
What is 11?
Compare: y = x² + 4x + 4 vs. y = 2^x. Which grows faster for large x?
What is exponential/y = 2^x?