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antiseptic1488 [7]
3 years ago
13

What is the equation of line l? y = -x - 1 y = x + 1 y = 3x - 3 y = -3x - 3

Mathematics
2 answers:
ivolga24 [154]3 years ago
5 0

Answer:

y = 3x-3

Step-by-step explanation:

The line has a y intercept of -3   (where it crosses the y axis)

We know the slope is positive since it goes up from left to right

The only answer with a positive slope and a y intercept of -3 i

y = 3x-3

ruslelena [56]3 years ago
3 0

To find the equation of this line, let's first find the y-intercept of the line which is the point where the line crosses the y-axis.

To find the y-intercept, we start at the origin.

We go 0 units to the left or right and 3 units down.

So that's (0, -3).

Now we can confirm that the y-intercept is -3.

So for any of the equations that have a y-intercept that's not -3, we can immediately eliminate them.

So we can eliminate y = -x - 1 and y = x + 1.

Now we have two equations left, y = 3x - 3 and y = -3x - 3.

Now we have to look at our line.

Remember that positive slopes go up and negative slopes go down so we can confirm that the equation won't have a slope of -3.

So therefore, the equation is y = 3x - 3.

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factor the polynomial completely and SHOW WORK i’ve been on it for the past 30 minutes and I want to cry 24x^3-78x^2+45x NO LINK
Svetllana [295]

9514 1404 393

Answer:

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Step-by-step explanation:

First of all, recognize that all coefficients are multiples of 3, and all terms have x as a common factor. This means your first factorization is ...

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Now, you can use the "X-method" or similar to factor the quadratic. Start by looking for factors of (8)(15) = 120 that have a total of -26. Both will be negative. Here is a list of the positive factor pairs.

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The sums of these factor pairs are ...

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Using this information, you can complete the X-method diagram, or you can use these numbers to rewrite the quadratic x-term to have 2 parts:

  8x^2 -20x -6x +15

Now, the quadratic can be factored by grouping:

  =  (8x^2 -20x) +(-6x +15)

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Recognizing the sign difference between the parentheses contents, we can factor the quadratic to be ...

  = (4x -3)(2x -5) . . . . . note the sign gets attached to the 3

So, the complete factorization of the original expression is ...

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I- i just need help at this point...
chubhunter [2.5K]

Answer:

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