11. What is the slope of the line passing through the points (3,5) and (-1,7)?

a) -½
b) -1
c) -2
d) ½

12. Write the equation of the line with a slope of 0 through the point (3,-1).

a) y=3x-1
b)x=3
c) y - 1
d) x = -1

13. What is the equation of the line passing through points (1,1) and (3,-5)?

a) y=-3x+4
b) y= 3x-4
c) y=-3x-4
d) y=3x+4



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