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please helppp!!

What is the value of the function y = 2x + 3 ⁢when x=−1 ?


A. 5

B. 2

C. 1

D.​ −5





Select Is a Function or Is not a Function to correctly classify each relation.

Title Is a Function Is not a Function
{(3, 2),(6, 4),(9, 6),(12, 8)}

{(2, 3),(2, 5),(3, 6),(9, 4)}

{(2, 4),(6, 3),(4, 8),(6, 6)}

{(3, 4),(5, 2),(6, 8),(6, 4)}

Respuesta :

Answer:

put x=-1 in the equation

y=2(-1)+3=1

for the second one,

last two are not functions, as 6 has two different outputs.

second has two outputs for 2

so only first can be a fiction.

mark brainliest please

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