Write an equation of the line that passes through the given point has the given slope. how do i do this? ?

You will have to use the formula y-y1=m(x-x1)
Use the coordinates of the given point to fill in y1 and y2 and use the given slope as m.
Then if it is desired for the final equation to be solved for y (slope intercept form) just factor the one side, and solve for y

EXAMPLE: given slope=3  given point that the line passes through= (5,7)
y-y1=m(x-x1)
y-7=3(x-5)
y-7=3x-15
y=3x-15+7
y=3x-8