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2 years ago

What is the slope of the line that passes through the points listed in the table?

Mathematics

1 answer:

brilliants [131]2 years ago

4 0

Answer:

B. 2

Step-by-step explanation:

(4, 3) (7, 9) M = Slope

M = $\frac{y^2-y^1}{x^2-x^1}$ Slope formula

$M=\frac{9-3}{7-4}$ Using the slope formula, plot both x and y intercepts

$M=\frac{6}{3}$ Slope needs to be simplified into a whole number

$M=2$

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What is the measure in degrees of an angle that is supplementary to a 74° angle?

neonofarm [45]

Answer:

106°

Step-by-step explanation:

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2 years ago

B is the midpoint of AC, E is the midpoint of BD. If A(-9,-4), C(-1,6), and E(-4,-3), find the coordinates of D

Vadim26 [7]

Answer:

(-3, -7)

Step-by-step explanation:

Let $(x_{A,}y_{A}),(x_{B},y_{B}),(x_{C,}y_{C}),(x_{D,}y_{D})(x_{E,}y_{E)} \text{be the coordinates of points A, B, C respectively}\\\\$

The midpoint coordinates $(x_{M},y_{M})$ of any two points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ are given by $x_{M}=\frac{(x_{1}+x_{2)}}{2}$ and $y_{M}=\frac{y_{1}+y_{2}}{2}$

Since B is the midpoint of AC

$x_{B}=\frac{(x_{A}+x_{C})}{2}=\frac{(-9+(-1)}{2}=\frac{-9-1}{2}=\frac{-10}{2}=-5$

$y_{B}=\frac{(y_{A}+y_{C})}{2}=\frac{(-4+6)}{2}=\frac{2}{2}=1$

Since E is the midpoint of B and D and we are given the coordinates of E as (-4,-3). it follows that

$x_{E}=\frac{x_{B}+x_{D}}{2} = \frac{-4+x_{D}}{2}$

Therefore

$x_{D}=2x_{E}+4=2(-5)+4=-3$

Similarly

$y_{E}=\frac{y_{B}+y_{D}}{2} = \frac{1+x_{D}}{2}y_{D}=2y_{E}-1=2(-3)-7=-7$

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1 year ago

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MArishka [77]

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3 years ago