Question

Which of the following points is a solution of y < 3x - 1?
A. (2, 0)
B. (-2, 0)
C. (0, 2)
D. (-2, -2)

Answer 1

@magbak

Answer 2

@mathmate

Answer 3

\[y<3x-1\] we can try \((2,0)\) to see if
\[0<3\times 2-1\\
0<5\] so that point fits the equation

Answer 4

there could be more, so you have to try all the points,
put in the first number for x, the second one for y, and see if the inequality is true or false

Answer 5

thanks

Answer 6

you are welcome
don't forget to try the other pioints

Answer 7

its b

Answer 8

no dear B is not a solution

Answer 9

hmm my calculator says http://www.symbolab.com/solver/inequalities-calculator/-2%3C%203%5Ccdot0-1/?origin=enterkey

Answer 10

@misty1212

Answer 11

@lizz123

Answer 12

\[y<3x-1\\
0<3\times (-2)-1\\
0<-7\] is FALSE so not \((-2,0)\)
this is arithmetic, not really a job for a calculator

Answer 13

not sure how a calculator is going to check an inequality

Answer 14

so c?

Answer 15

oh oh oh i see what you did with the calculator

Answer 16

but you put the y for an x and the x for the y

Answer 17

btw its an inequality calculator ohhh

Answer 18

you swapped them

Answer 19

\[(-2,0)\\
(x,y)\]

Answer 20

x comes first just like it does in the alphabet "w, x, y and z"

Answer 21

its not d

Answer 22

nice way to cheat though very creative

Answer 23

what?

Answer 24

well you are helping me

Answer 25

so

Answer 26

using a calculator is clever
i think only C and A work

Answer 27

thats what i though because i am checking them now hmf

Answer 28

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