Write the point slope form of the equation of the line using the given info. (-3,-4), slope = 2

y + 4 = 2(x + 3)

the equation of a line in ' point-slope form ' is

y - b = m(x - a )

where m is the slope and (a, b) a point on the line

here m = 2 and (a, b) = ( - 3, - 4)

y + 4 = 2( x + 3 ) ← in point-slope form

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.