Quiz 2 math 012

Question

Find an equation of the line passing through the points (-2,6)and (4,1). Write the equation in slope-intercept form.

 

2) Find the value of y so that the line through the points (1,y)and (6,-2) has the slope of 1/5.

 

6) Write an equation of the line through (-2,5) and parallel to 3x-y=4. Write the equation in standard form.

Answer 1

1.    m=(1-6)/(4+2)= -(5/6)

            (y-1) = -(5/6)(x-4)            Using Point slope form of an equation

            y = -(5/6)x+ (13/3)

 

2.   (y+2)/(1-6)=1/5

         (y+2)/(-5)=1/5

              (y+2)=-1

                 y= -3

 

6)    3x -y = 4

            y = 3x - 4, m = 3

 

                  (y-5) = 3(x + 2)

 

y = 3x + 11