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3 years ago

A point P has coordinates (-8, -2). what are its new coordinates after reflecting point P across the y-axis?

Mathematics

1 answer:

just olya [345]3 years ago

5 0

Answer:

(-8,2)

Step-by-step explanation:The y-value does not change, only the x-value becomes positive.

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F(x) = -1/3x find the average rate of change of f from -2 to 2

Bas_tet [7]

Average rate=(change in y)/(change in x)

if f(x)=-x/3

r=( f(2)-f(-2) )/(2--2)

r=(-2/3-2/3)/(2+2)

r=(-4/3)/4

r=-4/12

r=-1/3

For a line, this is always true, since all lines have a constant velocity, the average velocity over any interval is equal to the slope.

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3 years ago

Alan and his classmates performed a linear regression analysis on the data set shown below and found that the line of best fit t

stealth61 [152]

Answer:

C. $y=\frac{4}{5}x+7$

Step-by-step explanation:

Alan and his classmates found that the line of best fit through the data had the equation $y=-\frac{5}{4}x+18$

The slope of this line is $m=-\frac{5}{4}$

If a line would intersect this line of best fit at right angles, then the two lines are perpendicular to each other.

The slopes of perpendicular lines are negative reciprocals of each other,

Hence that line must have slope $\frac{-1}{-\frac{5}{4}} =\frac{4}{5}$

Therefore we look for a line whose slope is $\frac{4}{5}$ from the given options.

That line is the third option $y=\frac{4}{5}x+7$

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3 years ago

The table below shows the results from a survey of 200 people attending a hockey game asking about their choice of souvenirs.

Usimov [2.4K]

C) 2,750 is your answer!!!!!

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3 years ago

Read 2 more answers

K(1,0), L(4,1), M(1,4), N(-2, 3) 90% counterclockwise rotation

docker41 [41]

Answer:

K (0,1)

L (-1,4)

M (-4,1)

N (-3,-2)

Step-by-step explanation:

When you rotate a figure 90 degrees counterclockwise about the origin, the points all change from (x,y) to (-y,x). Therefore the points would go from: (answers on right side)

K (1,0) ---> K (0,1)

L (4,1) ---> L (-1,4)

M (1,4) ---> M (-4,1)

N (-2,3) ---> N (-3,-2)

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3 years ago

Eduardo thinks of a number between 1 and 20 that has exactly 5 factors. What number is he thinking of?

fredd [130]

16, with the factors– 1, 2, 4, 8, and 16 itself

4 0

4 years ago