Question

Rewrite the function to make it easy to graph using transformations of its parent function. Describe the graph. y=radical 4x-20

Answer 1

what are the choices?

Answer 2

there are none

Answer 3

how would i rewrite

Answer 4

why is there a minus 5?

Answer 5

-5

Answer 6

y=4x-20-5 simply: 7=2 x-5 -5

Answer 7

W

Answer 8

Team work ;-;

Answer 9

yess

Answer 10

thanks

Answer 11

i have one more

Answer 12

alr

Answer 13

same thing just different numbers. radical 25x-75

Answer 14

25x -75 then you have to factor it out 25 from the expression 25(x-3) your answer then would be 25(x - 3)

Answer 15

it said it was wrong there shoulr be a radical somewhere

Answer 16

oh.

Answer 17

Original equation
x = √25x-75

Isolate
-√25x-75 = -x

Organize.
√25x-75 = x

Answer 18

x = 3.4861

Answer 19

Raise both sides to the second power
(√25x-75)2 = (x)2



After squaring
25x-75 = x2

Answer 20

Rearranged equation
x2 - 25x + 75 = 0


This equation has two real roots:
x1 = ( 25 + sqrt(325) ) / 2 = 21.5139
x2 = ( 25 - sqrt(325) ) / 2 = 3.4861

Answer 21

Original equation, root isolated, after clean up
√25x-75 = x

Plug in 21.5139 for x
√25•(21.5139) -75 = (21.5139)

Simplify
√462.847 = 21.514
Solution checks !!
Solution is:
x = 21.5139

Answer 22

Original equation, root isolated, after tidy up
√25x-75 = x

Plug in 3.4861 for x
√25•( 3.4861) -75 = ( 3.4861)

Simplify
√12.153 = 3.486
Solution checks !!
Solution is:
x = 3.4861

Answer 23

Which, makes your final answer x = 3.4861

Answer 24

Okay, you can close post now.