Given the equation 4x + 9y = 9, answer the following questions.
(a) Is the slope of the line described by this equation negative or positive?
negativepositive
(b) As x increases, does y increase or decrease?
y increases as x increasesy decreases as x increases
(c) If x decreases by 4 units, what is the corresponding change in y?
y ---Select--- increases decreases by units