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3 years ago

The point (-1, 8) is on a line that has a slope of -3. Is the point (4, -7) on the same line?

1 answer:

3 0

First you can use the formula and find your line so the formula is : y = mx + b and m is the slope and b is the y-intercept so now you should find b :
8 = -3 (-1) +b ⇒ 8 = 3 + b ⇒ 5 =b so now you have : y = -3x + 5 and if you want to know that the (4 , -7) is in this line or not you can say :
-7 = -3(4) + 5 ⇒ -7 = -12 + 5 ⇒-7 = -7 so the point is on the same line :)))
i hope this is helpful
have a nice day

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Step-by-step explanation:

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4 years ago

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scoundrel [369]

Answer:

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54x4 - 28y4 3.1 Factoring: 625x4-256y4

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Proof : (A+B) • (A-B) =

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Check : 625 is the square of 25

Check : 256 is the square of 16

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Check : y4 is the square of y2

Factorization is : (25x2 + 16y2) • (25x2 - 16y2) 3.2 Factoring: 25x2 - 16y2

Check : 25 is the square of 5

Check : 16 is the square of 4

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Check : y2 is the square of y1

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3 years ago

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3 years ago

A triangle T is bounded (on three sides) by the lines x = 6, y = 0, and y = 3 2 x. A rectangle of width w is inscribed inside T.

Viktor [21]

Answer:

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Step-by-step explanation:

you must first draw the triangle on the plane using the equations (see

attached file), you will have a right angle triangle with a height of 192 and a base of 6.

then you calculate the angle with the tangent function = 88.21

Then you use the small triangle to find the value of a (see attached file).

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i attached procedure

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