SOLUTION: HI please help me with this.THankyou The equation 9C-5F+160=0 describes the relationship between tempreature,C, in degrees Celsiu, and the tempreature , F, in degrees fahre

Algebra ->  Linear-equations -> SOLUTION: HI please help me with this.THankyou The equation 9C-5F+160=0 describes the relationship between tempreature,C, in degrees Celsiu, and the tempreature , F, in degrees fahre      Log On


   

Question 108161: HI please help me with this.THankyou


The equation 9C-5F+160=0 describes the relationship between tempreature,C, in degrees Celsiu, and the tempreature , F, in degrees fahrenheit.


a) express the equation in the form C=mF+b
b) Graph this relation
c) Identify the slope and the C intercept and explain what they mean
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
The equation 9C-5F+160=0 describes the relationship between tempreature,C, in degrees Celsiu, and the tempreature , F, in degrees fahrenheit.

a) express the equation in the form C=mF+b
9C-5F%2B160=0divide both sides by 9
%289%2F9%29C-%285%2F9%29F%2B%28160%2F9%29=0%2F9
C-%285%2F9%29F%2B17.8=0
C=%285%2F9%29F+-17.8

b) Graph this relation
Solved by pluggable solver: PLOT a graph of a function
Plotting a graph:
graph%28+600%2C+400%2C+-5%2C+35%2C+-20%2C+10%2C+%285%2F9%29x-17.8+%29
This solver uses formula rendering system and here's the actual formula that was plotted:

graph( 600, 400, -5, 35, -20, 10, (5/9)x-17.8 )



c) Identify the slope and the C intercept and explain what they mean
since our equation is in the slope-intercept form (y+=+mx+%2B+b),
where m=slope and b=y-intercept, we have slope m+=+5%2F9 and y-intercept is b+=+-+17.8