How to find the x and y-intercept given y= -1/2x - 4y=−12x−4?

1 Answer
Alan P.
May 3, 2015

The y-intercept is the value of yy at the point when the graph of the function crosses the y-axis; along the y-axis the value of xx is x=0x=0
So y=-1/2x-4y=−12x−4
becomes y= -1/2(0) -4= -4y=−12(0)−4=−4
The y-intercept is (-4)(−4)

Conversely the x-intercept occurs when y=0y=0
y=-1/2x-4y=−12x−4
becomes
0=-1/2x-40=−12x−4
1/2x=-412x=−4
x=-8x=−8
The x-intercept is (-8)(−8)

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