Which characteristics tell you that this graph shows a proportional relationship? Check all that apply. Three points are on the graph.
A straight line can be drawn through the points.
The ordered pairs all have the same x- and y-values.
The line connecting the points passes through the origin.

if x = 1, then the answer is 3.5

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

it would open into a square depending on the type of envelope i’m not sure about the second part