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The point-slope form of the equation of the line that passes through (–9, –2) and (1, 3) is y – 3 = 1/2 (x – 1). What is the slope-intercept form of the equation for this line?

User Enigo
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2 Answers

3 votes
You just have to simplify that point-slope equation in order to get it into slope-intercept:

y-3= (1)/(2) (x-1)

y-3= (1)/(2)x- (1)/(2)

y= (1)/(2) x- (1)/(2) +3

y= (1)/(2) x- (1)/(2) + (6)/(2)

y= (1)/(2) x+ (5)/(2)
User Chris Eidhof
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8.2k points
4 votes

Answer:


y=(x)/(2)+(5)/(2)

Explanation:

Hello

thanks for asking this question, I think I can help you with this

if you have the point-slope form of the equation of a line, just isolate "y" to find the slope-intercept form

Step 1


y-3=(1)/(2) (x-1)\\\\y-3=(x)/(2)-(1)/(2) \\Add\ 3\ in\ both sides\\\\y-3+3=(x)/(2)-(1)/(2) +3\\y=(x)/(2)-(1)/(2)+3\\y=(x)/(2)+(5)/(2)

so the answer is


y=(x)/(2)+(5)/(2)

where 1/2 is the slope, and 5/2 is the intercept with y-axis

I really hope it helps , Have a great day.

User Ivan Fretes
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