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What are the x and y intercepts of the equation?

SamJones  Feb 12, 2018
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y  =  log ( 7x + 3) - 2

 

To find the y intercept, let x  = 0 

 

y  = log (3)  -  2  ≈   -1.52

 

 

To find the x intercept, let y  = 0

 

0   =  log ( x + 3)  - 2       add 2 to both sides

 

2  =  log (x + 3)    this  says that

 

10^2  =  x + 3

 

100 = x + 3        subtract 3 from both sides

 

97  =  x

 

 

cool cool cool

CPhill  Feb 12, 2018

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