The point slope down of the equation of the line that passes through(-4,-3) and (12,1 is y-1=1/4(x-12). what is the standard form of the equation dor this line?
a. x-4y=8
b. x-4y=2
c. 4x-y=8
d. 4x-y=2

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

The area of a circle is equal to 1 dm². find the radius of the circle.

Tim has obtained a 3/27 balloon mortgage. after the initial period, he decided to refinance the balloon payment with a new 30-year mortgage. how many years will he be paying for his mortgage in total?