Question

Two numbers have a sum = -4 and a product that equals -32. What are the two numbers?

Answer 1

@iGreen

Answer 2

@MakaylaTracy

Answer 3

x + y = -4
x * y = -32

Answer 4

Think of the factors of 32..

Answer 5

How do I figure out what X and Y are?

Answer 6

That's what we're doing now.

Answer 7

Can 4 get into 32?

Answer 8

1 2 4 8 16 32

Answer 9

@iGreen

Answer 10

choose two numbers from those factors and see which one give you 32

Answer 11

16

Answer 12

like...1 x 32=32...if you add 1+32, would it give you -4? No.

Answer 13

16 times what gives you 32?

Answer 14

16x2

Answer 15

right. But in you problem, we have -32. make either 16 or 2 into a negative number. add them up and see if they give you -4

Answer 16

16 and -2

Answer 17

16 and -2 gives me -32

Answer 18

yes add them up? do they give you -4?

Answer 19

no

Answer 20

ok. We can also do -16x2, right? add them up and do you get -4?

Answer 21

no

Answer 22

-16 and 2 give me -32 which is correct but adding them isnt -4

Answer 23

ok. what do other numbers give you 32 from the factors?

Answer 24

none

Answer 25

remember you multiplication tables 8x?=32

Answer 26

oh yea. I was adding

Answer 27

8x4

Answer 28

right. ok. do the same as last time. -8x4, add them and see what you get. if you don't get -4. do 8x-4 and add them.

Answer 29

-8x4 gives me -32 and (-8) - 4 gives me -4

Answer 30

So the answer would be -8 and 4

Answer 31

Right

Answer 32

yes.

Answer 33

Ty, help me with a few morE?

Answer 34

i'll try. ok.

Answer 35

What is the slope of the line perpendicular to y = 7x + 9 ?

Answer 36

do you have choices? when we are trying to find perpendicular lines, have to be -1.