Calculator Tricks
The most common way to solve for an equation...
What is nSolve?
This quantity is also known as the constant rate of change.
Slope
Quadratics have either a max or a min these are also know as the...
Vertex
Given this equation, determine if it is growth or decay
y=2(1/4)^x
Decay!
What is the definition of a function?
A relation where every input has exactly one output.
This trick will bring up a table when you have already graphed a function.;
What is ctrl t?
The slope intercept form is the most common form of a linear function. What is the equation for this form?
y=mx+b
There are many names for this quadratic characteristic, one of them being x-intercept. What are the other names?
Roots, zeros, solutions.
Lily is trying to figure out how to simplify the following product.
(x^4)(x^8)
What should she do with the exponents?
Add them!
What is the slope of a vertical line?
Undefined
This calculator page will make it possible to insert a table of values and find the correlation coefficient.
What is List & Spreadsheets?
If you wanted to find an equation for a linear function and you have one point and a slope you would use point slope form. What is the equation to this form?
y-y1=m(x-x1)
This line cuts the parabola in half and always goes through the vertex. What is this line called?
Axis of symmetry
Your grandpa is giving you $500 to put in a high interest savings account. This savings account has an annual interest rate of 4.6%. Is this exponential growth or exponential decay?
Exponential Growth
What characteristic on the graph has an x-value equal to zero?
y-intercept
If you want to store a function in order to graph a transformation such as h(x)=2f(x). What must be done?
Delete the 1 from f1(x)?
A system of equations is two or more equations. If I wanted to solve by graphing I would graph the two functions then look for what?
Their intersection.
How many solutions would
x^2-2x+8=0 have?
Two!
Given the exponential equation below...what is the equation of the horizontal asymptote.
y=(1/4)^x-1
y=-1
If you have a data set that has a correlation coefficient r=0.986, what would this imply?
(Strong, Weak, Negative, Positive correlation)
Strong positive correlation.
This trick is used when graphing equations that are not solve for y.
Nsolve
If two lines are parallel they have this quantity in common. What is it?
If two lines are parallel they have this quantity in common. What is it?
What are the roots for the quadratic function below?
y=-x^2+4x+5
x=-1 and x=5
An Elk population starts off at 600 Elks. The population during the spring increases 5% every year. How many Elk are there in 2 years?
662
Two lines are perpendicular is their slopes are...
Negative reciprocals