Relations & function pt 2
q.2
what is f(-5)?

Option C:

The value of f(–5) is –15.

Solution:

The value of f(x) is depend on the value of x.

Here x is independent variable and f(x) is the dependent variable.

To find the value of f(–5):

f(–5) means, we should find the value of our function when x equals –5.

In the table, see the value of f(x) corresponding to the value of x = –5.

In third row, x is –5.

So, f(x) is –15.

Hence the value of f(–5) is –15.

Option C is the correct answer.

i think it would be 43 movies that would have to be watched.

step-by-step explanation:

think about it. for the second plan, every month is 8 dollars. 8 x 12= 96. so thats the number for the second plan. now for the first plan, its annual meaning you have to pay 10 dollars every year. so now you have to get an equivalent amount of 86 since 96-10=86. 86 divided by 2 since every movie costs 2$ then you would have to watch 43 movies a year to get the same as the second plan. i really hoped this . have a wonderful day as well!

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.