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iVinArrow [24]
3 years ago
9

The line passing through the points (-2, 10) and (5, -11)

Mathematics
1 answer:
aliya0001 [1]3 years ago
5 0
<h3>Answer:</h3>

y-intercept = (0, 4)

x-intercept = (3/4, 0)

<h3>Step-by-step explanation:</h3>

1 - Find the slope

slope = m = \frac{rise}{run} = \frac{y_2~-~y_1}{x_2~-~x_1} = \frac {-11-10}{5-(-2)} = \frac {-21}{7} = -3

2 - Plug the slope into y = mx + b and substitute a point into x and y to find the y-intercept, b, by isolating it.

y = mx + b

y = -3x + b

10 = (-3)(-2) + b

10 = 6 + b

-6   -6

4 = b

y-intercept = (0, 4)

3 - Rewrite the completed formula

y = -3x + 4

4 - Substitute 0 in for y to find the x-intercept

0 = -3x + 4

-4          - 4

-4 = -3x

-4/-3 = -3x/-3

 4/3 = x

x-intercept = (4/3, 0)

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Answer:

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And we know that the lenght is y = 20.3. If we solve for x from equation (1) we got:

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And replacing we got:

x = \frac{72.2 in -2*20.3 in}{2}= 15.8 in

And the width for this case would be 15.8 in

Step-by-step explanation:

For this case we know that the photo is rectangular. Let's define:

x = the width,  y= the length

And we know that the perimeter is given by:

P = 2x+2y   (1)

And we know that the lenght is y = 20.3. If we solve for x from equation (1) we got:

P-2y = 2x

\frac{P-2y}{2} =x

And replacing we got:

x = \frac{72.2 in -2*20.3 in}{2}= 15.8 in

And the width for this case would be 15.8 in

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3 years ago
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Akimi4 [234]

Answer:

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Step-by-step explanation:

(I'm not sure how to explain this further)

Hope this helps!

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3 years ago
I really need help i i put a picture up but this thing do´s not let me post it with out a question ?
kobusy [5.1K]

Answer:

Step-by-step explanation:

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Set each factors equal to zero.

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Answer:

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Step-by-step explanation:

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if we check this: 270 /100 *37 = 99,9

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slavikrds [6]
Y=1/3x+c as 1/3 is the gradient/slope
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5 0
3 years ago
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