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A line has a slope of\(-\frac{3}{7}\)  and its \(y\)-intercept is\((0,18)\). What is its \(x \)-intercept?

 
 Nov 22, 2020
 #1
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Equation of line

 

y = -(3/7)x  + 18

 

For x intercept, let y  = 0

 

0 = (-3/7)x + 18   subtract 18 from both sides

 

-18  = -(3/7)x    multiply both sides by - 7/3

 

(-18) ( -7/3)  = x  =   42  =  x intercept     

 

 

cool cool cool

 
 Nov 22, 2020

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