Term
|
Definition
|
|
Term
|
Definition
a2 + b2 = c2
(remember that c is always the longest side)
|
|
|
Term
|
Definition
|
|
Term
How do you find perimeter? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
A = s2
where s = side of square |
|
|
Term
less than means ________________ &
greater than means _________________ |
|
Definition
less than means subtract &
greater than means add |
|
|
Term
How do you simplify the expression below?
[image] |
|
Definition
[image]
(divide the inside exponent by the outside exponent
& keep the base the same) |
|
|
Term
|
Definition
|
|
Term
slope = ___________ rate of change |
|
Definition
slope = average rate of change |
|
|
Term
|
Definition
y = mx + b
(m is the slope & b is the y-intercept) |
|
|
Term
Perpendicular lines have slopes that are
_____________ reciprocals. |
|
Definition
Perpendicular lines have slopes that are
opposite reciprocals.
|
|
|
Term
How do you find the opposite reciprocal of a number?
|
|
Definition
You flip it and change the sign! |
|
|
Term
Parallel lines have the ____________ slope. |
|
Definition
Parallel lines have the same slope. |
|
|
Term
What letter represents the correlation
coefficient in your graphing calculator?
How do you know if you have a good fit? |
|
Definition
r represents the correlation coefficient
r values close to 1 or -1 show that you have a good fit
|
|
|
Term
How do you find the intersection of 2 functions? |
|
Definition
You find where the functions cross or overlap! |
|
|
Term
The equations of linear functions look like y = ____________.
The graphs of linear functions are ______________. |
|
Definition
The equations of linear functions look like y = mx + b.
The graphs of linear functions are lines.
[image] |
|
|
Term
The equations of quadratic functions
look like y = _______________.
The graphs of quadratic functions are ___________. |
|
Definition
The equations of quadratic functions
look like y = ax2 + bx + c.
The graphs of quadratic functions are u-shaped.
[image] |
|
|
Term
The equations of exponential functions look like y = ________.
The graphs of exponential functions are ___________. |
|
Definition
The equations of exponential functions look like y = abx .
The graphs of exponential functions are curves.
[image] |
|
|
Term
In quadratic word problems, when asked
"when an object hits the ground"
you should find the _________ of the equation you are given. |
|
Definition
In quadratic word problems, when asked
"when an object hits the ground"
you should find the x-intercepts of the equation you are given.
|
|
|
Term
How do you find the line of best fit
using your graphing calculator? |
|
Definition
(1) Enter your data.
(2) Press STAT, choose CALC, #4, then press ENTER. |
|
|
Term
What does a strong, positive correlation look like?
|
|
Definition
The y values increase (go up) as the x values increase.
The y values increase at a pretty constant rate.
If you find the line of best fit, the r value will be very close to 1 (example: r = 0.99).
[image] |
|
|
Term
What does a weak, positive correlation look like? |
|
Definition
The y values increase (go up) as the x values increase.
The y values are a bit spread out.
If you find the line of best fit, the r value will be between 0 and 1 (example: r = 0.65).
[image] |
|
|
Term
What does a strong, negative correlation look like? |
|
Definition
The y values decrease (go down) as the x values increase.
The y values decrease at a pretty constant rate.
If you find the line of best fit, the r value will be very close to -1 (example: r = -0.99).
[image] |
|
|
Term
What does a weak, negative correlation look like? |
|
Definition
The y values decrease (go down) as the x values increase.
The y values are a bit spread out.
If you find the line of best fit, the r value will be between -1 and 0 (example: r = -0.65).
[image] |
|
|
