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Thank you! please help!

Which equations represents the relationship shown in the graph?

a. y = -1/3x
b. y = 3x
c. y = 1/3 x
d. y = - 3x

Thank you! please help! Which equations represents the relationship shown in the graph-example-1
User Eento
by
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2 Answers

2 votes

Answer:

D. y = -3x

Explanation:

Firstly, find the coordinates:

(1, -3) and (2, -6)

Just from looking at these, you can tell that the y coordinate is multiplied by negative 3 but to find it using an equation, you can use the slope formula:


(y2 - y1)/(x2 - x1)

Where x1 and y1 is the first set of coordinates and x2 and y2 is the second set. Simply plug the variables in:


(-6 - -3)/(2 - 1)


(-6 + 3)/(1)


(-3)/(1) = -3

So the correct answer would be d.

Hope this helps!

User Miqbal
by
7.4k points
5 votes
The answer should be D. Y = -3x
User Seibelj
by
8.2k points

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