Question #8dba9

2 Answers
Asaf B.
Dec 6, 2017

Because this the simple form of y=mx-b
We don't need to work hard
And m=8

[thanks to those who commented]

Explanation:

This is a longer way(you can use it when there isn't the simple version)
First you need two points on the grid
Let's do x=0 and x=1
#y=8xx0-5/2#
#y=-2.5#

And
#y=8xx1-5/2#
#y=5.5#

Now use dose two points #(0,-2.5)(1,5.5)#to find the slope (m)
#m=(y2-y1)/(x2-x1)#
#m=(5.5-(-2.5))/(1-0)#
#m=8#

Jim G.
Dec 10, 2017

#"slope "=8#

Explanation:

#"the equation of a line in "color(blue)"slope-intercept form"# is.

#color(red)(bar(ul(|color(white)(2/2)color(black)(y=mx+b)color(white)(2/2)|)))#

#"where m is the slope and b the y-intercept"#

#y=8x-5/2" is in this form"#

#"with slope "=m=8#

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