If y - 4=2x, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?
{(2, 1), (4, 2), (6, 3);
{(1,2), (2, 4), (3, 6)}
{(4, 0). (6, 1). (8.2);
{(0.4), (1,6). (2.8)}

D- (0.4)  (1,6) (2,8)

Step-by-step explanation:

The first thing we want to do is to make the equation a function, so we put y by itself on one side,

Add 4 to both sides

y = 2x + 4   <<< This is the equation that we will use

So if we input these numbers in,

The answer seems to be D. Where if x = 0 then y = 4 and so on

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24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24

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