Final answer:
The slope of the line represented by the equation y = 9/10x + 3/10 is 9/10. This means for every unit increase in x, y increases by 9/10.
Step-by-step explanation:
The question asks us to find the slope of the line represented by the equation y = 9/10x + 3/10. In the slope-intercept form of a straight line, y = mx + b, the slope of the line is given by the coefficient m in front of the x-term. In this equation, the slope m is equal to 9/10. The slope indicates that for every unit increase in the x value, the y value increases by 9/10, which is the same all along a straight line.
As an example, let's reference Figure A1 mentioned in the question and relate to the provided equation. In a different instance, such as the equation provided in Figure A1 (y = 9 + 3x), the slope is indicated to be 3. However, in our given equation, the slope is clearly 9/10, not 3, therefore, it's important to look at the specific equation in question when determining the slope of a line.