Question 167089
This site explains it quite well:
http://www.purplemath.com/modules/strtlneq.htm
.
Write an equation of the line { slope =2 y-intercept= -3} 
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The "slope-intercept" form of a line is:
y = mx + b
where
m is the slope
b is the y-intercept
.
Simply plug in the given values:
y = 2x + (-3)
y = 2x - 3 (this is what they're looking for)