What happens when a variable on an axis of a graph changes? The curve will not shift. The curve will shift. The curve may or may not change depending on how the variables are related. The curve will shift if the variable is on the vertical axis, but not on the horizontal axis. What is the point where both x and y are zero called? the origin the null the zero coordinate the tangency Dave builds bird houses at a negligible cost. He sells 5 percent more bird houses this year than last year. The market price this year is 2 percent lower than last year. Which inflation rate makes Dave as well off this year as last year? 2 percent 3 percent 5 percent 7 percent How should Dianne's contributions to GDP be calculated? using her income, not her expenditure using her expenditure, not her income using both her income and her expenditure using either her income or her expenditure, but not both