Polynomials and Rational Functions

Question 1

Dividing/ multiplying by a negative number ————– the Inequality

Answer 1

Reverses

Question 2

distance formula :

Answer 2

d = √(x2-x1)^2 + (y2-y1)^2

Question 3

Slope Formula

Answer 3

m= y2-y1/x2-x1

Question 4

the graph is Horizontal if…..

Answer 4

the slope value is equal to zero

Question 5

The graph is vertical if …..

Answer 5

The slope value is undefined

Question 6

Points are colinear if …

Answer 6

The slope are the same

Question 7

Two graphs are parallel if …

Answer 7

Their slopes have the same value

Question 8

Two graphs are perpendicular if …

Answer 8

Their slope product is equal to -1 (m1 . m2 = -1)

Question 9

Point - slope of a line equation?

Answer 9

y = m(x-x1)+y1

Question 10

slope-intercept form of the line?

Answer 10

y=mx+b

Question 11

vertical line test

if a vertical line passes through the graph more than once the graph is said to be a function (T or F )

Answer 11

False, a graph is a function when a vertical passes through it once or never

Question 12

Any polynomial function is considered a Rational Function as well
( T or F )

Answer 12

True

Question 13

Any Rational function is considered a Polynomial Function as well
( T or F )

Answer 13

False, Rational functions cannot be considered as polynomial functions

Question 14

even roots are defined for … ( ALL real numbers - nonnegative values )

Answer 14

nonnegative values only

Question 15

odd roots are defined for nonnegative values only

T or F

Answer 15

False, odd roots are defined for both positive and negative values

Question 16

square roots on denominator are defined for nonnegative except …

Answer 16

Zero

Question 17

Quadratic Formula ?

Answer 17

(-b±√(b^2-4ac))/2a