What is the definition of absolute value
The distance from 0
Is this a function?
Yes
f(x)=3x+2
f(2)=?
f(2)=8
Solve for x
3x=-18
x=-6
abs(-6m)=30
m=-5
m=5
What is the definition of Relation
a set of ordered pairs
State the Domain & Range.
Domain: {10, 20, 30, 40}
Range: {15, 25, 35, 45}
h(x)=-2x-4
h(9)=?
h(9)=-22
Solve for b
-b/(13)=6
b=-78
abs(b/5)=1
b=5
b=-5
a relation with no repeats in the domain
Which set of ordered pairs is NOT a function?
A. {(1,4), (2,3), (3,2), (4,3)}
B. {(2,3), (3,2), (4,4), (5,2)}
C. {(-2,3), (4,1), (2,-1), (1,5)}
D. {(-2,3), (1,4), (-2,-1), (1,5)}
D
g(x)=-3x^2+10
g(-4)=?
g(-4)=-38
solve for k
(-8-3k)/2=11
k=-10
abs(-4+5x)=-16
no solution
give two different meanings for the domain
the input
the independent variable
the x value
Is this set of ordered pairs a function? If so, state the domain and range.
{(-7,4),(-8,3),(-7,7),(-20,8),(5,9),(3,1),(2,6)}
Not a function
j(y)=-x^2-3x+15
j(2)=?
j(2)=5
Solve for m.
24m-22=-4(1-6m)
no solution
abs(-4+5x)=16
x= 4
x=-12/5 (-2.4)
Give all three different meanings for the range
the output
the dependent variable
the y value
Is this set of ordered pair a function? If so state the domain and range.
{(10,9),(-2,-16),(-6,7),(5,8),(8,-16),(-11,9)}
Yes.
Domain: {-11, -6, -2, 5, 8, 10}
Range: {-16, 7, 8, 9}
q(x)=-13x+14x-125
q(18)=?
q(18)=-107
solve for x
-5(1-5x)+5(-8x-2)=-4x-8x
x=-5
abs((7p+4)/8)=3
p=20/7 (2.9)
p=-4