Final answer:
The equation for the line in slope-intercept form is , with a slope (m) of 3 and a y-intercept (b) of 9, and nothing is added to these values in the equation.
Step-by-step explanation:
To complete the equation of the line in slope-intercept form, which is written as where m is the slope and b is the y-intercept, we need to look at the given information. According to FIGURE A1, the slope (m) of the line is 3, and the y-intercept (b) is 9. Thus, the equation for the line would be . 5 added to in the original question suggests we are not changing the slope or y-intercept. Therefore, the line's equation, with no additions, remains as .