Solve by graphing: y = 3x y = -x+4

 

Solution: (1,3) 

:)

Describe the graph y=-1 and x=4

y=-1 is a horizontal line (parallel to the x-axis that passes through the intercept (0.-1) 

x=4 is a line parallel to the y-axis and passes through the point (4,0)

Solution for cos4x=cos2x

cos4x=cos2x

tells us that 

 

which gives us 

 
or 
 

where n is an integer

is division of a whole number associative property

10/(10/2)=10/5=2 
(10/10)/2=1/2 

no division is not associative

what is the inverse of f(x)=7/(6x-5)

 

then... 
 

 

 

 
and so 

what is the answer to 2square root 18

The value of 4y^(-2/3) + 3y^(2/3) + 2y^(-1/3) + 5y^(1/3) when y = 8

4y^(-2/3) + 3y^(2/3) + 2y^(-1/3) + 5y^(1/3)= 


4*8^(-2/3) + 3*8^(2/3) + 2*8^(-1/3) + 5*8^(1/3)= 


4/4 + 3*4 + 2/2 + 5*2= 


1 +12 + 1 + 10= 


24