What is the y-intercept of a graph with the points (-1, -2) and (4, 6)?

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Answer 1 · 2016-04-30T23:38:01

#y#-intercept #= -2/5#

The run of #x# is #5# and the rise of #y# is #8#

The slope is

#"slope" = "rise"/"run" = 8/5#

You have

#y =8/5x#

Then if you put #(4,6)# at the equation above,

#6= 32/5#

To make the equation true, you should subtract #2/5#

#y=8/5x-2/5#