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There one more picture I give it when we meet

There one more picture I give it when we meet-example-1
There one more picture I give it when we meet-example-1
There one more picture I give it when we meet-example-2

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The table shows the values of x and y of a certain function.

We can be sure it's a linear relationship because, for each increment of 1 in the value of x, the y also increments by 1.

It's required to find the y-intercept of the relationship.

If we look closely at the point (-1, -5) and (1, -3) we can note the point (0, ?) is missing.

We have already stated that, for every increment of 1 for x, the y will also increment by 1, thus, for x = 0, the value of y is y = -5 + 1 = -4

Note this is the mean value between -5 and -3, the two points just around the required answer.

We can also check this result by graphing or finding the equation of the line.

The y-intercept is -4

User Pedro Fracassi
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