Cards

Front 1

Law of Cosines

Back 1

C SQUARED EQUALS A SQUARED TIMES B SQUARED MINUS TWO A B COSINE C

Front 2

Area of a Triangle

Back 2

1/2 A TIMES B TIMES SINE THETA

Front 3

If the equation of a line is given as Y=MX+B the slope is___ and the y-Intercept is___

Back 3

M and B

Front 4

If the equation of a line is given as Ax+By+C the slope is__ and the Y intercept is__

Back 4

-A/B and C/B

Front 5

The slopes of parallel lines are__ and the slopes of perpendicular lines are__

Back 5

The Same and Negative Inverse

Front 6

Equation for a Circle

Back 6

(x-h)2 + (y-k)2 = r2 where R is the radius of the circle and (h,k) is the center point

Front 7

Equation for a Parabola

Back 7

Ax2 + Bx + C = Y (if A is positive then the parabola opens up for X squared and right for Y squared)

X=AY2 + BY + C (if A is negative then the parabola opens down for x squared and left for Y squared)

Front 8

Equation for a hyperbola

Back 8

X2/A2-Y2/B2=1 or

Y2/A2-X2/B2=1

There is an X2 and a Y2 term
If it is X2-Y2 then curves open right and left, if it is Y2-X2 the curves open up and down

Front 9

Equation for an Ellipse

Back 9

X2/A2+Y2/B2=1

A does not equal B
There is an X2 and a Y2
Both have positive coefficients
The horizontal axis is 2A
The vertical axis is 2B

Front 10

If you have f(absolute value of X)

Back 10

The left side disappears

Front 11

if you have the absolute value of f(x)

Back 11

then the whole graph is positive