## anonymous 4 years ago What is the slope of the line that passes through the points (-3, 5) and (1, 7)?

1. anonymous

the equation is 3x+y=11

2. hartnn

The slope of the line through points (x1,y1) and (x2,y2) is given by : $$\huge m=\frac{y_1-y_2}{x_1-x_2}$$ now,just put the values and find m.

3. hartnn

the equation isn't correct for those 2 points

4. anonymous

im confused

5. hartnn

can u substitute the points in the formula i gave ?

6. anonymous

$(x_1,y_1)~(x_2,y_2)$| | | |$(-3,5)~(1,7)$

7. anonymous

|dw:1352734187091:dw|

8. anonymous

so x1=-3 y1=5 x2=1 and y2=7 now just plug in the values and simplify :)

9. hartnn

-2/-4 = 1/2

10. hartnn

everything else is correct :)

11. anonymous

yup :D

12. anonymous

ogg so 1/2?

13. hartnn

yes, slope = m = 1/2

14. anonymous

What is the equation of a line that has a slope of -5 and passes through the point (0, 2)?

15. hartnn

the equation of line in slope point form is y-y1 = m (x-x1) m= slope = -5 here (x1,y1) = point = (0,2) here now just put values.

16. hartnn

next time , please, make a new post for new question