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2 years ago

Write a linear equation in standard form that crosses (4, -3) and (-2, 9):

1 answer:

8 0

Slope =(9+3)/(-2-4) = 12/-6 = -2
Y+3 = -2 (×-4) => y=-2×+5
D is the line asked
Slope: -1/3
D: y-6 = -1/3 (×-3) or y= -1/3× + 7

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The easiest way to find THE SLOPE on a graph? Please HELP

ratelena [41]

Step-by-step explanation:

Pick two points on the line and determine their coordinates

Select one to be (x1, y1) and the other to be (x2, y2)

Finally use the slope intersect equation to calculate the slope:

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y = mx + b

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2 years ago

Does the point (4, 0) satisfy the equation y = –5x + 4?

Arlecino [84]

Answer:

Step-by-step explanation:

y = –5x + 4

Substitute the point into the equation

0 = -5(4) +4

0 = -20+4

0 = -16

This is not true so it is not a solution to the equation

4 0

2 years ago

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choli [55]

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7 0

2 years ago

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Solve the system of equations by elimination 3x + 5y = 16 2x - y = 2

alina1380 [7]

Answer:

the answer is 2

Step-by-step explanation:

8 0

2 years ago

Determine the constant of variation for the direct variation given.

ohaa [14]

Answer:

B. 5

Step-by-step explanation:

We have been given that R varies directly with S. When S is 16, R is 80. We are asked to find constant of variation.

We know that two directly proportional quantities are in form $y=kx$ , where,

k = Constant of variation.

Upon substituting our given values, we will get:

$R=k*S$

$80=k*16$

$\frac{80}{16}=\frac{k*16}{16}$

$5=k$

Therefore, the constant of variation is 5 and option B is the correct choice.

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2 years ago