Final answer:
The Y-axis intercept is 10 and the slope is 0.8.
Step-by-step explanation:
The consumption function is represented by the equation C = 10 + 0.8Y, where C is the level of consumption and Y is the level of total output or income. To draw this function on a diagram with Y on the X-axis, the Y-axis intercept (autonomous consumption) is 10 and the slope (marginal propensity to consume) is 0.8.