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13. Which equation represents the line below?

A. y = -x +3
B. y = 2x - 6
c. y = -x + 4
D. y = 1/2x -3​

13. Which equation represents the line below? A. y = -x +3 B. y = 2x - 6 c. y = -x-example-1

1 Answer

4 votes

Answer:

y = -2/3x + 3

Explanation:

First, we need to calculate the slope of the line. We can do this by using the slope formula using two points:

(y₂ - y₁) / (x₂ - x₁)

If we take the points (-3,5) and (3,1), then: y₂ = 1; y₁ = 5; x₂ = 3; x₁ = -3

Next, we can substitute in values in the equation above to get (1 -5)/(3+3)

** We got 3+3 because it was 3 - (-3), where two negatives equal a positive**

Then, we get, -4/6, which simplifies to -2/3. Our slope is -2/3

After that, we need to find the y-intercept, which is where the line intercepts the y-axis. Here, that is at (0,3).

Therefore, if we put the above information into slope-intercept form:

y = mx + b --> m = -2/3; b = 3

y = -2/3x + 3

Though I don't think that answer choice is there...

User Yathirigan
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