Which equation shows the quadratic formula used correctly to solve 7x2 = 9+ x for x? -13V012-4709 O X= 2(7) 11 V-1)2-47(9) OX= 207) 2 -1+1/(-1)' +4(7)(9) -1( 2(7) O X= 1+ (-1)+4(79 2(7) O X=

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. david estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x.