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