A) y = 8x What happens to the value of y if the value of x triples?

Select your answer.

x 8

x 3

+ 3

+ 8

A

B

C

D

8

b) y= x

What happens to the value of y if the value of x doubles?

Select your answer.

x2

x4

- 2

4

A

B

C

D

So when we triple the value of "x" in that expression we also triple the value of "y". The corrrect answer is "x 3".

Step-by-step explanation:

For a given "x", y follows the expression: . We have a new input to the function, which we will call "a", we know that this value is 3 times the value of the prior "x", so we can calculate what will happen to "y" as shown below:

For when the input is "a":

We know that "a" is 3 times x, therefore:

Due to the associative property of the product we can rewrite the above expression as:

Since "8*x" is the same as the prior "y", then we have:

So when we triple the value of "x" in that expression we also triple the value of "y". The corrrect answer is "x 3".

40 minutes

step-by-step explanation:

add the time and multiply by 2

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4