Digital SAT Math

Question 1

State the quadratic formula.

Answer 1

See notes.

Question 2

What are the two formulae known as Vieta’s root theorem?

Answer 2

(alpha)(beta) = c/a

alpha + beta = - (b/a)

Question 3

What is the difference between a boundary and a limit

Answer 3

Boundary: WOAH THERE THIS IS AS FAR AS THIS INTERVAL GOES, THIS IS MY BOUNDARY (+ or - .5)
Limit: Whole number

Question 4

For the quadratic form a(x+h)^2 + k, what are the formulae for h and k?

Answer 4

h = b/2a

k = (4ac-b^2)/4a