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Schach [20]
4 years ago
14

Which formula should be used to find the slope of EF? A) x = -b ± b2 - 4ac 2a B) m = y2 - y1 x2 - x1 C) m = y2 + y1 x2 + x1 D) M

= (x1 + x2 2 , y1 + y2 2 )
Mathematics
2 answers:
Nastasia [14]4 years ago
8 0

A) The formula x =  -b ± sqrt(b2 - 4ac)/2a calculates the roots of a quadratic equation.

D) The formula M = ((x1 + x2)/2, (y1 + y2)/2) calculates the mid-point of the line joining the points (x_{1},y_{1}) and (x_{2},y_{2}).

B) The formula m = ((y2 - y1)/(x2 - x1)) calculates the slope of a line.

Hence, option B should be used to find the slope of EF.

REY [17]4 years ago
5 0

Answer:

Option B -  m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

To find : Which formula should be used to find the slope of EF?

Solution :

The slope formula of two points (x_1,y_1),(x_2,y_2) is given by,

m=\frac{y_2-y_1}{x_2-x_1}

As in given options,

A) x=\frac{-b\pm\sqrt{b^2-4ac}}{2a} is the quadratic formula used to find roots.

B) m=\frac{y_2-y_1}{x_2-x_1} is the required formula to find the slope.

C)  m=\frac{y_2+y_1}{x_2+x_1} is not any formula.

D)  M=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}) is the mid point formula.

Therefore, Option B is correct.

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Answer:

Step-by-step explanation:

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______ = _______

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7 0
3 years ago
Read 2 more answers
An athlete ran 200 meters in 19.19 seconds. Suppose that he ran the first half of that race (around a curve) in 10.75 seconds. H
SOVA2 [1]

The time needed to run the second half of the race is 8.44 s

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Also, we know that

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Re-arranging this equation and susbtituting the values, we find the value of t2:

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Learn more about uniform motion:

brainly.com/question/8893949

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