SAT Math concepts

Coefficeint

Number multiplied by a variable

Integer

Positive or negative whole number or 0

What do lines in parallel have in common and what’s different about them?

Same slope, different y-intercepts

What lines are perpendicular?

Lines with the negative reciprocal for the slope

Formula for degrees for interior angles 

180(n-2)

Isosceles triangle

has two common sides with an equal length and those two sides have equal angle measurements

Equalaterial triangle 

3 common sides and 3 60 degree angles 

Perimeter

all sides added together

Are area and volume on the SAT math sheet?

Yes

What are the proofs of triangle similarity I can use?

-AAA

-SSS

-SAS

-HL

sin(x)=

cos(90-x)

altitude of a triangle

line perpendicular to the hypotenuse

How do I shift functions to the right? 

f(x)=f(x-h)

How do I shift a function vertically?

f(x)+k

What does a line tangent to a circle mean?

It touches the outside of hte circle and is perpendicular to the radius

Formula for vertex of a quadratic? 

-b/2a

Vertex formula

x-intercepts added and averaged

What are x-intercepts of a quadratic equal to

-b/a

What is the product of x-intercepts equal to?

c/a

What is the formula for the discrimnant?

b²/4ac

What does a positive discrimnatn tell you?

Two real solutions

What does a discrimnatn of 0 tell you?

One real solution

What does a negative discrimnant tell you? 

No real solutions