Which equation represents a linear function?

A
y=4x+1
B
y=x2+2
C
y=x+1−−−−√3
D
y=−23x−12

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

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y