What are the domain and range of each relation? drag the answer into the box to match each relation. a mapping diagram. element x contains negative 2, negative 1, 0, and 2. element y contains negative 4, negative 2, and 2. negative 2 maps to negative 4. negative 1 maps to negative 2 and 2. zero maps to negative 4. two maps to 2. x y −4 −2 −2 1 1 4 4 4 domain: {−4, −2, 1, 4} range: {−2, 1, 4} domain: {−2, −1, 0, 2} range: {−4, −2, 2} domain: {−4, −2, −1} range: {−2, 0, 1}

Domain: {−2, −1, 0, 2} Range: {−4, −2, 2}

Step-by-step explanation:

We have been given a mapping diagram as shown below:

XY

-2-4

-1-2

02

2

For better view, you can check the attached mapping diagram.

From that diagram we have to find domain and range.

Domain contains only x values so domain will be:

Domain: {-2,-1,0,2}

Range contains only y values so range will be:

Range: {-4,-2,2}

We see that only third choice matches obtained values of domain and range.

Hence final answer is  Domain: {−2, −1, 0, 2} Range: {−4, −2, 2}

8

Step-by-step explanation:

0) the basic formula is: L=v*t, where L - distance, v - speed/velocity; t - time;

1) if the person's speed in still water is 'v' and the speed of water is 5 (according to the condition), then the upstream speed is 'v-5' and the downstream speed is 'v+5';

2) according to the condition the upstream time and the downstream time are the same, it means t₁=t₂=t, where t₁=upstream time and t₂=downstream time;

3) according to the items above it is possible to make up the equation of the upstream travel: t(v-5)=3; ⇒ t=3/(v-5);

4) according to the items above it is possible to make up the equation of the downstream travel: t(v+5)=13; ⇒ t=13/(v+5);

5) if t=3/(v-5) and t=13/(v+5), then