vocabulary
a symbol, often a letter, to represent an unknown number
What is a variable?
What is x: 3x=33
What is 11?
The y-intercept (x,y) of the line y = 9x+8 (say the ordered pair, please!)
What is (0,8)
What operation undoes multiplication?
What is division?
all whole numbers and their opposites
What is an integer?
a number that is multiplied by a variable
What is a coefficient?
what is x: -5 + x = -8
What is -3
What is the y-intercept (x,y) of the line y = x - 5 (say the ordered pair (x,y) please!)
What is (0, -5)
What operation undoes subtraction?
What is addition?
two numbers with a sum of zero
What are opposites, or a zero pair?
7x and 5x, for example. These can be added together because they have the same variable part.
What are like terms?
what is x: 6x + 4x = 100 - 80
What is 2?
Which point lies on the line y = 3x + 2?
(3,3) (-5, -13) (1,1) (2, 0)
What is (-5, -13)
What does the P in PEMDAS stand for
What is parentheses?
the ratio of the circumference of a circle divided by the diameter
What is pi?
How the y values change as the x goes up by 1.
What is the: slope, rate of change, rise over run, gradient? (all of these are acceptable answers)
What is x: 3x -7x = x +25
What is -5?
Which point lies on the line y = -4x - 5
(-9, -1) (-9, 1) (-9, - 41) (-9, 31)
What is (-9, 31)
What is the first step you have to do to solve this equation?
3 * 4(8 - 2) +72 =?
What is 8 - 2?
A number (like pi) that has a non-terminating, non-repeating decimal part
What is irrational?
The name of the point where the x and y axes cross (0,0)
What is the origin?
solve for x: 8x +13 - 2x = 24 + 2x - 3
What is 2?
What is the equation of the line (y=mx+b) that passes through these points?
(-3, 4) (0,4) (3.7, 4)
y = 4
What is the first step you have to do to solve for x:
35 = 7x + 14
What is subtract 14?
two numbers that have a product of 1 when multiplied together.
What are reciprocals? (1/2*2/1 =1; 3/4 * 4/3 = 1)