x-Intercepts and y-Intercepts

Question 3

 Find the x and y intercepts of the equation
-2x + ( 1/2 )y = -3.

Solution

To find the x-intercept, set y = 0 and solve for x.

 

 -2x + ( 1/2 )( 0 ) = -3
 -2x + 0 = -3
 -2x = -3
 x = -3/( -2 )
 x = 3/2

 

To find the y-intercept, set x = 0 and solve for y.

 

 -2( 0 ) + ( 1/2 )y = -3
 0 + ( 1/2 )y = -3
 ( 1/2 )y = -3
 y = -3/( 1/2 )
 y = -6

 

Therefore, the x-intercept is ( 3/2, 0 ) and the y-intercept
is ( 0, -6 ).

The graph of the line looks like this:

Graph Solution 3



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