Let f(x) = 4x + 5 and g(x) = 9x − 4
f-g
(f-g)(x)=

1. what are the missing reasons in the proof 2. it's in the second picture and 3

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9