Relations as Functions
Evaluating Functions
Operation of Functions
Composition of Functions
Problem Solving Involving Functions
10
It is a correspondence between two sets, the domain and the range, such that for each value in the range, there corresponds exactly one value in the domain.
Function
10
Evaluate the function h(x) = 5x2-8x+12 given x=5.
97
10
g(x)=2x-4 and h(x)=2x-7. Find (g+h)(3)
1
10
g(x)=6x-7 and h(x)=5x-1. Find g(h(x))
30x-13
10
Find the domain f(x)=(x+2)/(x+1)
Domain: All real numbers except x=-2 and x=-1
20
Determine if the ordered pair is FUNCTION or NOT.{(-4, 2), (0,9), (-4,-8), (4,5), (-1,-10), (11,5)}
NOT FUNCTION
20
If f(x) = (5x-3)(x+1), find f(-3).
36
20
-5(x+3)-2x(x-1)
-9x^2-13x
20
g(f(1)) Given: f(x)=3x-1 and g(x)=x^2+4
-2
20
Find the solution to the inequality (x+4)/(2x-1)<0
-4<x<1/2 or (-4, 1/2)
30
San Jose del Monte National High School has its own School ID which is 301060 while other school also has their own school ID. Which rule represent the given statement?
a. One-to-one
b. Many-to-one
c. One-to-many
d. Many-to-many
a. One-to-one
30
Evaluate the function, f(x)= (x-4)/(2x-5)
2/3
30
f(x) = 8x -4 and g(x) = 6x+18, find (f(g(x))
2x^2+5x-3
30
f(x)=x^2-6; find f(f(x))
x^4-12x^2+30
30
A computer shop offers encoding and printing job. Lovely the owner of the computer shop charges Php 100.00 for an encoding work and an additional Php 3.00 per page of printed output.
How much will Lovely charge for encoding and 105 printed output?
Php 415
40
The statement “ positive times positive is equal to positive.
The statement is _________
a. always true
b. never true
c. sometimes true
d. invalid
always true
40
f(x)=3x^5+2x+10 ; f(1)
15
40
f(x)=3x^2+18x+27 and g(x)=x+3; find f(x)/g(x)
x=-3
40
f(x)=x^3; find (f(f(2))
512
40
A proposed tricycle fare would charge Php 20.00 for the first 4 km of travel and Php 6.00 for each additional kilometer over the proposed fare.
What is the distance travelled of the tricycle if the passenger will pay Php 56.00?
10 kms
50
Give one reason when a Relation is a function?
x is not repeated
one to one relation
50
f(x) = { (2x+3) if x<-1
(3-x) if x > -1
Find f(5)
-2
50
f(x)=(2x-1) and g(x)=(x^3-216); find f(x)*g(x)
2x^4-x^3-432x+216
50
f(x)=x and g(x)=1/(2x+1); find g(f(x))
1/(2x+1)
50
What is the Complete Name of your Gen. Math teacher?
Leslie Silvestre Ocampo