Find the greatest common factor of 25x^2 and 20b^4

25x^2 = 5 (5x^2)
20b^4 = 5 (4b^4)

so GCF = 5

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for

The first digit is in the middle school 100s place