Question

which ordered pair is a solution of y=5x
a.-2,10
b.-5,25
c.-3,15
d.-2,-10

Answer 1

First You need to try substituting the options

Answer 2

The correct answer will be equal on both sides of the equation

Answer 3

this is just a matter of substitution to see which one is correct

I will do the first one..
y = 5x
(-2,10)...x = -2 and y = 10
now we sub
10 = 5(-2)
10 = -10 ...this is incorrect and is not a solution.

now sub in your points and find the one that is correct

Answer 4

is it b?

Answer 5

when you sub in your points....does it make the equation true ?

Answer 6

im a bit confused

Answer 7

on substituting

Answer 8

your points are set up like this....(x,y)

y = 5x
(-5,25)....x = -5 and y = 25
now sub
25 = 5(-5)
25 = -25.....is this correct ?

Answer 9

For substituting for this problem you are going to simply take the first number in the problem and replace it with the X and replace the second number for the y and then multiply the x number by five since they are coordinates.

Answer 10

no

Answer 11

so b is not the solution. Now try your other answer choices and find the one that is true

Answer 12

oh it's D

Answer 13

BINGO...yes...you got it

Answer 14

thank you

Answer 15

sure thing :)

Answer 16

wait

Answer 17

ok

Answer 18

can you help me again...

Answer 19

I can try

Answer 20

which ordered pair is a solution of -7x+2
a. 1,2
b. 8,-54
c.5,-35
d.1,-7

Answer 21

now i was worming out this one and thinking it's c

Answer 22

working*

Answer 23

do it the same way......oh...wait....this is not the entire equation...whats it equal to ?

Answer 24

yeah it's a question mark next to the 2

Answer 25

I do not understand....it is not an equation if there is no equal sign.

this is what would happen if I just subbed in the points...
-7x + 2
(1,2)...x = 1 and y = 2
now sub
-7(1) + 2 =
-7 + 2 =
-5

there is not even a y in your equation....I cannot solve this

Answer 26

sorry it's y= -7x+2

Answer 27

@texaschic101