slope = change in y / change in x
the change in y will not be constant unless you pick evenly spaced x values (the same changes in x)
if change in y is constant for evenly spaced x values then the slope is constant so it is a straight line.
Jordan uses a linear equation to model the data in a table. Which reasoning might Jordan have used in the decision to model the data with a linear equation?
The products of corresponding x- and y-values are equal.
The ratios of consecutive y-values are equal for evenly spaced x-values.
The change in y-values is not constant, but the change is constant for evenly spaced x-values.
The change in y-values is constant for evenly spaced x-values.
2 answers
helkop