What is the input (x or y)?
What is the output (x or y)?
Input: X
Output: Y
The letter that stands for rate of change/slope in a linear equation form.
M
Find the solution to: -2x - 13 = 7.
-10
This is what the 'b' represents in y = mx + b.
Y-intercept/initial value
Give the next three terms in this sequence:
-9, -3, 3, 9
Is this sequence arithmetic or geometric?
15, 21, 27
Arithmetic
The rise over the run.
Rate of change or slope
Draw an example of negative correlation
Decreasing
What is the test I can use to see if a graph is a function?
Vertical line test
Does the following table represent a function?
x y
1 2
2 5
6 2
2 9
5 1
No, because the input (x) of 2 has two different outputs (y)
Is this sequence geometric or arithmetic?
-1, 3, -9, 27
Geometric
This is the point where the graph crosses the y-axis.
The y-intercept or initial value
Stan's speed steadily increases as he walks from home to school. Sketch a graph with labelled axes to show his distance from home with respect to time.
Graph should have both axes labelled and how a line with a slope that increases (not linear)
Daily Double
Daily Double
What is the initial value in y = -3x - 1?
-1
Why might you prefer to know the explicit formula of a sequence instead of the recursive one?
The explicit one will allow you to determine any term in the sequence.
Define function. State how it differs from a step function.
A relation for which each input has exactly one unique output.
Step functions are not continuous, but discrete.
What is an outlier?
Data point that differs significantly from other observations.
What is the difference between geometric and arithmetic sequences?
Geometric sequences have a common ratio (multiplying or dividing by the same number)
Arithmetic sequences have a common difference (adding or subtracting the same number)
Define linear function.
A function that has a constant rate of change and makes a straight line when graphed
Write the formula for this sequence and then find the 7th term.
-5, -10, -15
an=-5+(n-1)(-5)
a7=-35
What are the three forms of linear functions? Provide their formula
Slope intercept
Standard Form
Point Slope
Is this a positive association?
No, it is a negative association.
Rewrite this literal equation for B:
Ax+By=C
(C-Ax)/y=B
Is this a Function
Yes
Write the formula for this sequence and find the next 3 terms:
2, 18, 34
an=2+(n-1)(16)
50, 66, 82