A curved line on a graph with one vertex. A _______ hits the x axis twice, we graph it on our graphing calcultors. Also known as the "axis of symmetry"
Parabola
100
find the range of these numbers:
50, 87, 72, 30, 0, -98, 98
-98, 98
100
y=mx+b is a ___
linear equation
100
Q1 is found by using the lower half of numbers in an ordered set. True or False
True
200
We graph this on our calculators, simmilar to a parabola, but this graph of a quadratic function has straight lines.
absolute value
200
Use the zero product property to solve for x. (7)(5)(x)(3)=0
x=0
200
y2-y1/x2-x1 is the...
slope equation
200
verticle line test: if a vertial line touches a graph more than once it _______(is or is not) a function
is not
300
are these equations the same? ( section 2,7-2,8)
2(2x-7) and 4x-14
yes
300
identify the slope and y intercept
y=-2/3x-4
slope: -2/3
y intercept: -4
300
Hint: there should be two answers, a negative and a positive
(x+2)^2=81
x=7
x=-11
300
What is the equation with a negative b that you use to find the roots of a line?
-b/2a
300
another term for rate of change is ______
slope
400
x^2+7x+6 Hint:use sneaky squares
(x+6)(x+1)
400
this is called a....
Pick a number _____
add 2_______
multiyply by -1______
add 10______
divede by -1_____
subtract origional number_____
Number trick
400
Solve for 0: (x+4)(x-6)(9)(x+1)=0
x= -4, 6, -1
400
What is this equation?
xy=k
a.) inverse variation
b.) direct variation
c.)five number summary
A.) inverse variation
400
a _____ line has a slope of zero
A.) linear
B.) horizontal
b.) parabola
horizontal
500
3(b-3)=-2(b+2)+21
b=5.2
500
explain the subsatution method
when you have two equations and put one equal to another by plugging in the equation in the space of a variable. ex.) y=3x+7
12=12x-11
12x-11=3x=7
9x=18
x=2