what the answer to this math problem?

Question

if you were to graph this what would its points be so you could graph it.

f (x) = square root symbol 3x-15

please explain how you did it.


were i put the words square root symbol just pretent that's a square root symbol.

Answer 1

Well if x=25, then you would solve the equation for f(x).
f(x) = sqrt ((3*25)-15) = 7.75.

So you would plot the point (25, 7.75) on your graph.

Answer 2

Just plug in.

sqrt(3*5 - 15) = 0
sqrt(3*6 - 15 = √3
sqrt(3*7 - 15) = √6
sqrt(3*8 - 15) = 3
sqrt(3*9 -15) = √12 = 4√3
sqrt(3*10 -15) = √15
etc

Any x less than 5 will result in f(x) equaling the a square root of a negative number, and thus anything less than 5 won't show up in a real plot. Don't bother testing them.

Just plug in 50 points or so.

Answer 3

you would go 2 15 on the y axis because thats your y-intercept. and you would rise 3 and go over 1 from 15 because 3 is your slope and your slope has to be rise over run so thats why you would rise 3 run 1 from 15. keep doing that then draw your line.

Answer 4

f= -25.98

i have a very smart hightech calculator in 8th grade math
you do

square root symbol 3 times ( -15)=

-25.98

Answer 5

plug in random numbers till you see the picture and trends....

If your taking calculus:

check your 1st and 2nd derivatives for maxima/minima/concavity

note the points and graph according to those.

If not taking calc ignore the above as it prob made things worse :P

Answer 6

Regardless of the answer to your math problem,
I would strongly recommend a remedial course in English, as well.

Answer 7

Take three numbers - -2, 0, and 2, and try them. Try a few more to tsee the pattern.

Answer 8

unless i am mistaken you have different instructions or did not give us the complete problem

Answer 9

wow thats hard

Answer 10

I have no idea