Polynomials
(x+7) (x-4)
X2+3x-28
The graph has ____ solutions when there are two x intercepts
2
What is a y intercept?
When the line crosses through the y axis - the number of the y coordinate when the x coordinate is zero
23
8
Name a system of equations
graphing, substitution, or elemination
(X-2) (x+2)
X2-4
The graph has _____ solutions when the graph doesn’t cross the x axis
0
What is a common difference?
The number you add or subtract to get from one number to another in an arithmetic sequence.
122
144
Name three forms you could use with linear equations
slope intercept, standard, and point slope
x2+3x+x-4+3x2-2x-1
4x2+2x-5
The graph has ____ solution(s) when the graph crosses the x axis once
1
What is a common ratio?
The number you multiply by to get from one number to another in a geometric sequence
What do you do to the exponents when…
xa*xb
Add them
You could find slope on a graph by doing…
rise over run
(2x-7) (x+1) +2
2x2-5x-5
Solve this by completing the square
X2-6x+8
X=2,4
What is a radicand?
The number placed directly inside of a radical (square root symbol)
What do you to to the exponents when…
xa/xb
Subtract them
simplify sqrt 20
2 sqrt 5
(2x+1) (x+2) +7x-1
2x2+12x+1
What is the quadratic formula?
-b+/-sqrtb2-4ac
————————-
2a
What is a parabola?
A U shaped curved graph that is a quadratic function.
What do you do when it’s a negative exponent?
Put it in the denominator, or in some cases, the numerator. Flip it across a fraction bar and make it positive.
What is a monomial?
An algebraic expression that has only one term