Riggoletto's Portraits specializes in making circular portraits of people. A large portrait is 18 in. in diameter. A medium portrait is 6 in. in diameter. Estimate the difference between the areas of the two sizes of portraits. Use 3.14 for T. Round your answer to the nearest whole number.​

$7.50x+$4.50y=midk it's been awhile since i've done one of these

Idon't see any graph, however the graph of the function : f(x) = x²-2x+3 is a parabola: 1) open upward (since a> 0)2) it intersects y-axis in 3 (y=3)3) its axis of symmetry is x = +1 ( -b/2a)4) it's minimum is y = -2, so its vertex is (1,-2)5) it doesn't intersect the x-axis since discriminant < 0