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steposvetlana [31]
3 years ago
6

Can someone please help me ASAP (radical functions)

Mathematics
1 answer:
Afina-wow [57]3 years ago
6 0

Answer:

D

Step-by-step explanation:

To find the y- intercept, let x = 0 in the equation

Given

f(x) = - \sqrt{5x+2} - 1, then

f(0) = - \sqrt{5(0)+2} - 1 = - \sqrt{2} - 1 ← y- intercept,

(0, - \sqrt{2} - 1 ) ← coordinates of y- intercept

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Write a function g whose graph is a horizontal shrink by a factor of 1/3
mote1985 [20]

Answer:

  • g(x) = 6|x + 1| - 2

-----------------------------------------

Given:

  • Function f(x) = 2|x + 3| - 2

Find a function g which is a horizontal shrink by a factor of 1/3 of f(x).

Horizontal shrink by a factor of k is:

  • g(x) = f(x/k)

Apply this to the given function:

  • g(x) = f(x : 1/3) = f(3x) = 2|3x + 3| - 2 = 6|x + 1| - 2

7 0
1 year ago
Aleksandra started studying how the number of branches in her tree grows over time. Every 1.5 years, the number of branches incr
vova2212 [387]

Answer:

N = 52 * (9/7)^(t/1.5)

Step-by-step explanation:

This problem can be modelated as an exponencial problem, using the formula:

N = Po * (1+r)^(t/1.5)

Where P is the final value, Po is the inicial value, r is the rate and t is the amount of time.

In our case, we have that N is the final number of branches after t years, Po = 52 branches, r = 2/7 and t is the number of years since the beginning (in the formula we divide by 1.5 because the rate is defined for 1.5 years)

Then, we have that:

N = 52 * (1 + 2/7)^(t/1.5)

N = 52 * (9/7)^(t/1.5)

7 0
3 years ago
Which transformations map the strip onto itself?
Pie

Answer:

<h2>A horizontal translation and a 180° rotation only.</h2>

Step-by-step explanation:

Notice those shapes are positioned as a reflection.

So, one way to map them onto is self is by rotating 180° and a horizontal translation. Or it could work if we translate it horizontally, the we reflect it vertically. Those transformations would map the strip onto itself.

Therefore, the second choice is the best answer.

4 0
3 years ago
bobby delivers newspapers in the neighborhood. in addition to a weekly salary, he earns tips from the people he delivers to . if
iVinArrow [24]

17% of $200 is $34

Hope that helps.

6 0
3 years ago
A plan ran for 100 performances. The theater was full for 85% of the performances. For how many performances was the theatre NOT
Contact [7]
Simple do 100 - 85 and get 15 so 15%
5 0
2 years ago
Read 2 more answers
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