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LetsWorkItOut

I can find the y value for an x-value of 1, when I know two points on a line because then I know the slope which helps me understand the rate that the line is moving.

Luckily, in a proportional relationship, we know one point is given (0,0), because proportional relationships go through the origin.
So I will use the slope formula y2-y1/x2-x1 to find slope. It comes out to 16/12 or simplified to 4/3, that is our slope. I can write an equation for the line since I now have a slope, and I was given the y-intercept (0).
Y= (4/3)x
Now I plug in the values for the point we are looking for! I'm given 1 for x so let's plug it in.
(4/3)*1= (4/3)

The point comes out to (1,4/3)
That means that our y-value is 4/3, that's your answer.

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facundo3141592

Answer: y = 1.33

Step-by-step explanation:

A proportional relationship is one relationship of the form:

H = kX

Where H and X are variables, and k is the constant of proportionality.

if the graph passes through (12, 16), this means that when X = 12, H = 16

16 = k12

Now we can find the value of k.

k = 16/12 = 1.33

Then we can find y knowing that x = 1.

H = 1.33x = 1.331 = 1.33

then y = 1.33

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