Question

Determine if (-5/2, 1) is a solution to -2x+3y=2

Answer 1

sub the point into the equation does it equal to 2 on both sides?

Answer 2

-2(-5/2)+3(1)=2

Answer 3

remember any whole number can be expressed as a fraction just use 1 as the denominator

(-2/1)(-5/2) +3(1) = 2

do you know how to multiply fractions?

Answer 4

its just numerator*numerator, denominator*denominator

Answer 5

so (-2*-5)/(1*2) + 3(1) = 2

Answer 6

you can do the rest if you get 2=2 then the answer is yes if not the answer is no obviously

Answer 7

-2*-5=10
1*2=2
10/2=5
5+3=8
8-1=7

Answer 8

I dont know where the 10 came from

Answer 9

and your solution seems incorrect

Answer 10

please read what I wrote

Answer 11

remember that a point is

(x,y)

Answer 12

well defined as

Answer 13

oh I see you split it up I dont recommend doing that you may misplace numbers

Answer 14

(-2*-5)/(1*2) + 3(1) = 2
remember a
- * - = +
- * + = -
+ * + = +

Answer 15

so we are left with

(10/2) + 3 = 2

Answer 16

-2*-5=-10
1*2=2
-10/2=-5
-5+3=2

Answer 17

-2*-5 =/= -10

Answer 18

- * - = +

- * + = -

+ * + = +

Answer 19

-2 sorry

Answer 20

no please review what I posted just above your last response

Answer 21

-1 * -1 = 1
-2 * -1 = 2
-3 * -2 = 6
etc

-1*+1 = -1
-2 * +1 =-2
-3 * +2 = -6
etc

+2 * +1 = 2
+3 * +2 = 6
etc

Answer 22

so based on this we assume by rule

(-)(+) = -
(-)(-) = +
(+)(+) = +

Answer 23

Memorize this it is fundamental and vital to your success in mathematics

Answer 24

-2*-5=10
1*2=2
10/2=5
5+3=8

Answer 25

thats what i did

Answer 26

dont rearrange the equation

Answer 27

I will post the proper solution for you please follow my example in the future

Answer 28

-2(-5/2)+3(1)=2
(-2*-5)/(1*2) + 3(1) = 2
(10/2)+3(1) = 2
5 + 3 = 2
8 = 2

\[8 \neq 2\]

8 does not equal 2

Thus the point does not exist, what does this mean it means that in the graph -2x+3y=2 there is never a point (-5/2, 1)

http://www.wolframalpha.com/input/?i=graph+-2x%2B3y%3D2+

Answer 29

which means the line of the graph never crosses the point (-5/2, 1)

Answer 30

please make sure you keep the equation intact in the future, its ok to do rough work to solve for a number but it is vital that you always go back to the original equation

Answer 31

but yeah hope this helps

Answer 32

yes it don't thank you