Inverse
Modelling
Slope
Regression
Equations
100
When finding an inverse what is the first step
Switch the x and y
100
What is interpolation?
When you find a new point in between two known points
100
What is the formula for slope?
(y2-y1)/(x2-x1)
100
Write an r- value that would suggest a weak linear correlation
Anything close to 0
100
What is the equation for slope intercept form
y = mx+b
200
When finding an inverse what is the very last step
Using the correct notation
200
What is Extrapolation
When you find a new point of a line outside of two known points
200
Given the points (6,10) and (8,16), find the slope.
3
200
Write an equation in slope - intercept form for the line of best fit. Round to the nearest tenth.
y= 0.2x + 32.8
200
What is the equation for point-slope form
y - y1 = m(x - x1)
300
Given the point (8, -20) lies on the graph of g(x), name a point that lies on the graph of g-1(x).
(-20,8)
300
The movie theatre fills up at a constant rate of 15 people per minute. If there was 77 seats left 6 minutes into the seating process, how many seats are left after 10 minutes.
17 Seats Remaining
300
If the slope of a line is 4, what is the slope of a line that is parallel?
4
300
Which of the following r - values shows the strongest linear association?
a) r = 0.5
b) r = - 0.023
c) r = 0.74
d) r = - 0.903
d) r = -0.903
300
If the equations of a line is
y-1=8(x+2)
Find the y-intercept of this line
17
400
Given f(x) = 3x-1, find the inverse
f-1(x) = (x+1)/3
400
Chelsea goes to the arcade. After being there for an hour, she has 86 tokens remaining. After being there for 3 hours, she has 22 tokens remaining. How many tokens would Chelsea have after being at the arcade for 3.5 hours.
6 Tokens
400
Given the points (1,11) and (12,9), find the slope.
-2/11
400
Does the data have a strong linear correlation? How do you know?
Yes
r = 0.965...
400
Write the following linear equation in slope - intercept form.
y - 7 = -4(x +2)
y = -4x - 1
500
Given f(x) = (x+2)/17 find its inverse
f-1(x) = 17x-2
500
The population of Alfred in the year 1960 was 6,023. In the year 1982 it was 8,003. Assuming the rate of the population growth is constant, what would Alfred's population be in 2045.
13673
500
If a slope of a line is -3, what is the slope of a line that is perpendicular?
1/3
500
What is the slope of the line of best fit for the data? Round to the nearest hundredth.
0.20
500
Write the equation of a line with the points (9,10) and (4,0) in point-slope form
y - 0 = 2(x - 4)