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Effectus [21]
3 years ago
5

Choose the equation that satisfies the data in the table.

Mathematics
1 answer:
torisob [31]3 years ago
4 0

Answer:

y=-4\,x-4   which agrees with answer "A" in the list of possible options

Step-by-step explanation:

From the fact that there is a steady rate of increase in the x and in the respective y values (notice that x increases in steps of 1 unit, and at the same time y values increase in steps of "-4" units) the data belongs to the equation of a line.

We can determine that equation using just two pairs of points, like for example (-1, 0) and (0, -4).

We first find the slope using the slope formula for the segment that joints any two points on the plane:

slope=\frac{y_2-y_1}{x_2-x_1} \\slope=\frac{-4-0}{0-(-1)}\\slope = -4

we now write the slope-intercept general form of a line with slope "-4", and solve for the intercept by using the point (0,-4) which should be in the line:

y=m\.x+b\\y=-4\,x+b\\-4=-4\,(0)+b\\b=-4

Therefore the equation for this points is:

y=-4\,x-4

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