Posted by Mitch on Wednesday, November 28, 2012 at 8:05pm.
Find the equation of the line and write your answer in the slopeintercept form.
1. Has a yintercept of 5 and a slope of
2. Has a slope of 5 and a yintercept of 2/3.
3. Has a slope of 3 and contains (4,9).
4. Has a slope of 4/9 and contains (0,2)
5. Contains the points (4,5) and (6,12).

Algebra  Reiny, Wednesday, November 28, 2012 at 9:14pm
the slopey intercept equation has the form
y = mx + b , where m is the slope and b is the yintercept
so for the first 2 questions it is simply a matter of putting in the given values
for the next two , we are given the slope but not the intercept
so for 3. start with
y = 3x + b
but (4,9) lies on it , so
9 = 3(4) + b
21 = b
equation is y = 3x + 21
Do #4 the same way
For #5 , first find the slope , then proceed just like I did in #3
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