Which table represents a linear function? х
1
2
3
4
y
3
6
12
24
х
1
2
3
4
y
2
5
9
14
Х
1
2
3
4
y у
-3
-5
-7
-9
دام احدث ام
y
-2
-4
-2
0

(4,5

look up a corrdinate plane and do what the thingy says and boom

in 4 days he will run   12/14

step-by-step explanation:

below

step-by-step explanation:

1. 5/1

2. 10/16

3. 90/2

4. 1/20

5. 3/1

6. 14/24

7. 1/4

8. 18/10

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81