Question

Okay, so I have to see if I did this correctly(:

Use the given equations to find the missing domain and range elements:

y=-3x+5

Domain Range
x y
---------------
-3
0
7
1
4


So I got:

-3 10
0 -5.5
? 7
1 4
4 2.5

Answer 1

if x = 1, y = -3 + 5 = 2.

The line 1 4 should be 1 2

Answer 2

Oh my gosh! I put the wrong equation up! SORRY! Its
\[x^2-2y=11\]

Answer 3

if x = 4, y = -3*4 + 5 = -12 + 5 = -7

line 4 2.5 should be 4 -7

Try to find the value of x that gives y = 7 :]

Answer 4

wow, it changes everything...

Answer 5

x = -3, you will have:

(-3)² - 2y = 11
9 - 2y = 11
9 - 11 = 2y
y = -1

Answer 6

x = 0 it's correct. for x = 1
1² - 2y = 11
1 - 2y = 11
1 - 11 = 2y
-10 = 2y
y = - 5

x = 4 its correct.

Answer 7

With y = 7,
x² - 14 = 11
x² = 25
x = 5

Answer 8

So:

-3 -1
0 -5.5
5 7
1 -5
4 2.5

Answer 9

Yea!

Answer 10

Thanx so much!!! Much Apreciated!! GBU!! :)

Answer 11

Oh, a problem!! In the line 5 7 it's +- 5.

Answer 12

x² = 25 gives the solution x = 5 and x = -5

Answer 13

haha(: thanx!

Answer 14

so instead of 4 and 2.5
its 5 and -5

Answer 15

no no

Answer 16

In the row: 5 7 (x = 5, y = 7)
Its correct, however, -5 7 is correct too.

Answer 17

Because you have to find the value of x that gives you y = 7, and x = 5 and x=-5 gives this. Just try:

x² - 2y = 11
(5)² - 2y = 11
25 - 2y = 11
14 = 2y
y= 7

(-5)² - 2y = 11
25 - 2y = 11
14 = 2y
y = 7

Answer 18

Haha, thank!