SOLUTION: My daughter is working on homework. Writing Equations of Lines, Using the given information, write the equation of each line. 1. Slope of -1/2 and y-intercept of 3 How would

Algebra ->  Test -> SOLUTION: My daughter is working on homework. Writing Equations of Lines, Using the given information, write the equation of each line. 1. Slope of -1/2 and y-intercept of 3 How would      Log On


   

Question 685521: My daughter is working on homework. Writing Equations of Lines, Using the given information, write the equation of each line.
1. Slope of -1/2 and y-intercept of 3
How would she get this problem? She does not understand the lesson and I dont either.
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
The slope intercept equation for a line follows y = mx + b where
m is lope and b is y intercept.
...
Therefore, with m = -1%2F2 and b = 3
highlight_green%28y=%28-1%2F2%29x+%2B+3%29
...
Alternatively,
Given the y intercept, it is the point (0, 3)
...
Use the slope and point within the point-slope formula of
y-y1=m(x-x1)
...
y - 3 = -1%2F2(x-0)
y - 3 = %28-1%2F2%29x
highlight_green%28y=%28-1%2F2%29x%2B3%29
.....................
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