Question

Match the key aspect of a functions graph with its meaning.

Answer 1

Answer:

1- C

2- D

3- B

4- A

Step-by-step explanation:

Answer 2

Answer:

1 - C

2 - A

3 - D

4 - B

Step-by-step explanation:

Consider an arbitrary function y=f(x).

1. f(x)>0 means y>0. y>0 determines all points on the graph which have positive y-coordinates. Positive y are corresponding to those x from the domain, for which graph lies above the x-axis. So 1 - C

2. f(x)<0 means y<0. y<0 determines all points on the graph which have negative y-coordinates. Negative y are corresponding to those x from the domain, for which graph lies below the x-axis. So 2 - A

3. To find y-intercept, we have to substitute x=0, so input is zero. Hence, 3 - D

4. To find x-intercept, we have to substitute y=0, so output is 0. Hence, 4 - B