4 years ago

Is (1,-1) a solution of y=3x+2

1 answer:

7 0

In order to check a solution, just plug in the coordinates. The 1 is x, and the -1 is the y. Just plug the numbers in and see if it works out:

y = 3x + 2
(-1) = 3(1) + 2
-1 = 5

-1 is NOT equal to 5, so (1, -1) is NOT a solution of y = 3x + 2.

You might be interested in

Which equation can be used to solve for x xx in the following diagram? Choose 1 answer: (Choice A) A ( 5 x + 30 ) − 5 x = 90 (5x

Alona [7]

Answer: answer is C

Step-by-step explanation:

for find x
(5x+30)+5x=90
5x+30+5x=90 add like terms
after,
10x+30=90
10x+30-30=90-30
10x/10=60/10
x = 6

to obtain answer as C
it mean
(5x+30)+5x=90
(5(6)+30)+5(6)=90 we know x=6 so add 6 to x and multiply and obtain answer is correct!
30+30+30=90