Functions
These functions add or subtract at a constant rate.
linear functions
A pair of numbers that describes the location of a point on a graph. (x,y)
coordinates
The formula for a linear function.
y=mx+b
DAILY DOUBLE
The shape made by a quadratic function.
parabola
Which direction does the quadratic function open?
f(x)=3x2+5x-1
up
DAILY DOUBLE
In a linear function, what is the rate of change called?
slope
The point where the function touches the y axis.
y intercept
The minimum or maximum point on a parabola.
vertex
The highest point of a parabola when it opens down.
vertex or maximum
Dilated by a factor of 1/3
Translated down 4
f(x) = 1/3x2-4
These functions have the shape of a parabola.
quadratic function
The point(s) where two or more lines cross. The point is also a solution to each line it touches.
intersection
DAILY DOUBLE
The equation of the parent function of a quadratic.
The central intersection of the x axis and the y axis on a graph.
origin
Find the vertex of the quadratic function.
f(x)=-x2+5=8
(0,-3)
These functions grow by the power of two. (They always have x2 in them.)
quadratic functions
DAILY DOUBLE
The root of a function, or where it crosses the x axis.
x intercept or zero
Any coordinate that satisfies an equation or sits on the line of that equation.
solution
When something is made up of exactly mirrored parts on either side of an imaginary line, it is...
symmetric
Describe how to graph a parent function.
Use the pattern over 1 up 1 then over 2 up 4
Reflect the points over the y- axis
Connect the points to create a parabola