Terms
What is a variable?
A Variable is a symbol for a number
What is the leading term coefficient of this polynomial?
5x⁴+7x+3
5
Solve for x: 3x-11=55
x=22
In a negative correlation, as x _____, y_____.
As x increases, y decreases or as x decreases, y increases
Theoretical Probability?
Probability based on comparing the number of possible favorable outcomes to the number of total possible outcomes
What is a Coefficient?
A Coefficient is a number used to multiply a variable
Solve: 2x3+x2-4x+2 at x=2
14
Solve for x: (4+3)+5x+(6-3)=30
x=4
What is an expression
you have to just simplify an expression.
Trend Line?
a line that approximates the relationship between the data sets of a scatter plot
What is an exponent?
An exponent refers to the number of times a number is multiplied by itself.
Solve: 3x2-7x+12 for x= -1
22
Solve for x: ((3+5)/4)+3=10x
x=1/2
Make a table of values for the expression 3x - 2 (for x=1, 2, 3, 4, and 5). Then, draw a graph of the expression by plotting those values.
3x-2 = 1, 4, 7, 10, 13
Independent Value?
x value, because y depends on the x value
what is an Algebraic Expression?
A mathematical phrase involving at least one variable and sometimes numbers and operation symbols.
What degree is the following polynomial?
2x⁶+5x⁴+3
Degree 6
Solve for x: 3+6×(5+4)÷3-7=7x
x=2y
Solve the equation: 2(8y - 7) = 2(3 + 8y)
It has No solution
Probability?
the likelihood that a particular event will occur
What is a polynomial?
The degree of each term in a polynomial in two variables is the sum of the exponents in each term and its the largest such sum.
What is the definition of a polynomial?
An expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).
What does equation mean ?
a statement that the values of two mathematical expressions are equal (indicated by the sign =).
Create a word problem to represent this expression: 4(5x + 3)
Answers may contain
Natural Numbers?
The set of numbers 1, 2, 3, 4, ... Also called counting numbers.