How do you find the x and y intercepts for #y=1/2x-4#?

1 Answer
Jun 7, 2016

Answer:

y-intercept: #(-4)#
x-intercept: #8#

Explanation:

The y-intercept is the value of #y# when #x=0#
Given
#color(white)("XXX")y=1/2x-4#
when #x=0#
#color(white)("XXX")y=1/2(0)-4=-4#

The x-intercept is the value of #x# when #y=0#
Given
#color(white)("XXX")y=1/2x-4#
when #y=0#
#color(white)("XXX")0=1/2x-4#

#color(white)("XXX")4=1/2x#

#color(white)("XXX")x=8#