Respuesta :

Answer:

y = 4x + 1  and y = −23x − 12

Step-by-step explanation:

A:  y = 4x + 1 is a linear function; its graph is a straight line that passes through (0, 1) (the y-intercept).

B:  is a quadratic (not linear) function; its graph is curved.

C:  Are you trying to divide x + 1 by sqrt(3)?  Unclear.

D:  y = −23x − 12 also has the form of a linear function:   y = mx + b