Question

Cheryl is driving to her grandmother’s house for the weekend. She drives at a constant speed of 60 miles per hour on the freeway. Time (Hours) 1 2 3 4 5 Distance (Miles) What are the five values that complete the Distance (Miles) row of the table? Is this relation a function? Explain your reasoning.

Answer 1

Givens:

• 
  `s=60(mi)/(hr)`

We have to ding each distance at those given times to complete the table. We can solve it by just replacing values into the constant movement definition, which is
`d=st`

For
`t=1`:

`d=60(mi)/(hr) (1hr)`

`d=60mi`

For
`t=2`:

`d=60(mi)/(hr) (2hr)`

`d=120mi`

For
`t=3`:

`d=60(mi)/(hr) (3hr)`

`d=180mi`

For
`t=4`:

`d=60(mi)/(hr) (4hr)`

`d=240mi`

For
`t=5`:

`d=60(mi)/(hr) (5hr)`

`d=300mi`

Therefore, the complete table would be:

t d

1 60

2 120

3 180

4 240

5 300

We conclude that the table represent a function, because it's defined the relation between two variables, one independent (time), one dependent (distance). But, the most important characteristic is that for every t-values, there's only one d-value, and that is the definition of a function.

Answer 2

ok so think about it.

shes going to her grandmas- and she travels 60 miles for every hpur she drives.

time(hours):

1 shes driving 60 miles PER HOUR- so in one hour she traveled 60. (60 is answer)

2 shes driving 60 mies per hour- so two hours would be 120. (120 is answer)

3 shes driving 60 mies per hour- so 3 hours would be 180 (this means 180 is answer)

4 shes driving 60 mies per hour- so 4 hours would be 240 (and so 240 is answer)

5 shes driving 60 mies per hour- so 5 hours would be 300 (300=the answer)

Explanation:

so you kinda just wannamu.Mutiply the distance per hour by the hours... so like- 60 mph*1=60 60 mph*2=120 etc.

the answers are

1:60

2:120

3:180

4:240

4:300