In a simple regression analysis, the correlation between the two variables (x and y) is strong and negative. This implies that: Select all that apply. O The slope of the regression line will be negative. O Increase in a causes y to decrease and vice versa. O As x decreases, y tends to increase. O As x decreases, y tends to decrease. O As x increases, y tends to increase. O Decrease in a causes y to increase. O The y-intercept must also be negative