Number 1 = -6, -1, 3, 7, 11
Number 2 = -4, -3, -2, 1, 2
Number 3 = 3, 2, 1, 0, -1
Number 4 = -1, 2, 5, 8, 11
Answer:
up and down is positive, side by side is negitive diagnoal lines are negitive. so undefined is anything under the x axis that doesn't go over the line
The function is all of the ordered pairs (dots/points) on the graph. The definition of a function is that all inputs (x values) have exactly one output (y value). Therefore, this is a function, and the x and y values have been plotted on this graph to more easily visualize the function for you.