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Praxis - Algebra
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Gravity
Terms in this set (31)
Volume of Cylinder
V= πr^2 h
Slope Intercept Form
y=mx+b
Point-Slope Form
y-y1=m(x-x1)
Formula for Slope
m=(y2-y1)/(x2-x1)
Standard Form
Ax+By=C
Surface Area of A Cylinder
A= 2πrh+2πr^2
Circumference of a Circle
C=2πr
Area of Circle
A=πr^2
What is the discriminant of a perfect square?
b^2-4ac
Axis of symetry
x=-b/2a
Quadratic Formula
x=(-b±√b^2-4ac)/2a
1st Step in Completing the Square
Subtract c from each side
2nd Step in Completing the Square
Divide each side by a
3rd Step in Completing the Square
Add (b/2)^2 to each side
4th Step in Completing the Square
The left side of the equation is now a perfect trinomial write the left side as the square of a binomial
5th Step in Completing the Square
Find the square root of each side of the equation
6th Step in Completing the Square
Solve for x
Compound Interest
A=P(1+r/n)^(nt)
Simple Interest
I=PRT
Arc length
2πrm/360
SA cone
πrs + πr^2
SA Sphere
4rπ^2
SA Pyramid
1/2ps + B, p=base perimeter
Degrees in polygon
180(sides - 2)
i
√-1
i^2
-1
i^3
-i
i^4
1
direct variation
y=kx
inverse variation
y=k/x
polynomial
Expression of more than one algebraic term (not division by variables)
;