Question

I NEED URGENT HELP NOW PLEASE!!!!!

Which graph represents an increasing function? Four graphs of y against x are shown.
The title for the first graph is Graph A, the title for the second graph is Graph B, the title for the third graph is Graph C, and the title for the fourth graph is Graph D. Graph A is a straight line joining the ordered pairs 0, 6 and 3, 0.
Graph B is a straight line joining the points 3, 0 and 3, 5.
Graph C is a straight line joining the points 0, 3 and 3, 3.
Graph D is a straight line joining the points 0, 0 and 3,3.

Graph A
Graph B
Graph C
Graph D

Answer 1

D.

Explanation:

An increasing function is a function where if the x value is increasing then the y value is increasing too.

A. This function is not increasing because in x=3 the y value (that is 0) should be greater than the y value of x=0 (that is 6), but it doesn't happen.

B. This is not a function because for the x = 3 we have many different y values (from 0 to 5).

C. This is not an increasing function because for all the x values (from 0 to 3) the y value is the same (that is 3).

D. This is an increasing function because in x=0 the y value (that is 0) is smaller than the y value of x=3 (that is 3).

Answer 2

Graph D

Explanation:

For a function to be increasing, it must a positive slope. Graph B and C are vertical and horizontal lines. This means their slopes are undefined and 0 which cannot be increasing. Graph A has the slope -2 and is decreasing. Graph D has slope 1. Therefore it is increasing. You can see it on the graph because it starts low on the left and rises towards the right side of the graph.