Question

The scatter plot shows the number of pages scanned (y) in different number of hours (x) by a scanning machine: plot ordered pairs 0, 500 and 1, 1500 and 2, 2500 and 3, 3500 and 4, 4500 and 5, 5500 which function best represents the data shown in the scatter plot? y = 100 + 1,000x y = 100 − 1,000x y = 500 − 1,000x y = 500 + 1,000x

Answer 1

Answer: He’s right. ^^^

Answer 2

The output increases by 1000 when the number of hours increases by 1, so the slope of the function is +1000. The y-intercept of the function is 500, the output for 0 hours.
.. y = 500 +1000x . . . . . . . corresponds to the 4th selection