Which does not represent a function

The thing about a function is that it must map each input in its domain to a single value. So a function needs to pass the vertical line test, which is that every vertical line on the graph passes through the curve exactly zero or one time. One time means the x value is in the domain of the function, zero times means it isn't. Two or more times means it's not a function; it has failed the vertical line test.

The sideways parabola in graph B is not a function; the y axis for example, x=0, passes through it twice.

Graph B

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8

b. 2 and 4

step-by-step explanation: