contestada

Explain hard to tell whether (2,-1) is a solution of the equation Y= 3X -2 without using the graph

Respuesta :

Answer:

Considering the equation given:

[tex]y= 3x -2[/tex]

As a function:

[tex]f(x)= 3x -2[/tex]

[tex]$(2, -1)$[/tex] states for [tex](x, y)[/tex], which means, [tex]x=2[/tex] and [tex]y=-1[/tex]

[tex]f(2)= 3(2) -2\\f(2)= 6-2\\f(2)= 4[/tex]

[tex]4\neq -1[/tex]

Therefore, [tex]$(2, -1)$[/tex] is not a solution for the equation given and for the function.