Texes Math 235
Find vertex from standard form ax^2+bx+c=0
If vertex is (h, k), then h = -b/2a and k can be found by plugging h in for X and solving the equation.
Ration of short side to hypotenuse for 30-60-90 triangle?
If short side is X then hypotenuse is 2X
The set of irrational numbers is ________________ for addition, subtraction, division, and multiplication
OPEN NOT CLOSED
An two or more inscribed angle that terminate on the same points will all be ____________.
equal
An inscribed angle is equal to _______ the value of the arc.
half
Any angle inscribed in a semi-circle...
is a right angle
If a triangle is inscribed in a circle and the hypotenuse is the diameter than the triangle will always be a __________ triangle
right triangle
When two chords intersect inside a circle
the product of the segments of one chord equals the product of the segments of the other chord
When a line is tangent to a circle, the line is perpendicular to _______________
the radius or diameter of the circle.
Quadratic expression in vertex form
y = a(x - h)^2 + k where (h, k) is the vertex of the parabola