Algebra Christmas Exam that kicked my Butt Boosackman Trademark Set
4 way to describe Absolute Values graphs
slope intercept form
slope formula for 2 points
two things needed for writing the equation of a line
point and slope
parallel lines have the _______ slope
Perpendicular lines have _________ slopes
slope of y=3
slope of x=-7
natural+whole+integers+all fractions and terminating decimals
all positive whole numbers (not 0)
non terminating decimals without a pattern
operands can switch places
identity property of addition
a rectangular structure used to organize data
identity matrix of addition for a 2x2
identity matrix of multiplication of multiplication for a 3x3
[1 0 0]
[0 1 0]
[0 0 1]
what must be true to add matrices together?
they must be the same size
how might you probe that 2 matrices are inverses of each other?
if you multiply them by each other and get an identity matrix and get multiplicative inverse matrices
what makes an absolute value equation shrink?
a fraction less than one before the abs. val. box
what makes an abs.val. box stretch?
a whole number greater than 1 before the box
lines are equal, cross all same points
it doesn't cross anywhere
crosses one point only
what is the difference between an equation and an inequality?
inequality has a variety of answers within a range, an equation can be inconsistent, independent, or dependent
number inside the box
number outside the box
how to find the vertex of an abs. val. equation
opposite of number inside box (x), then outside number (y)