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4 years ago

Reflect the point (-8,-3) across the x-axis

1 answer:

5 0

When reflecting numbers over the x-axis the x coordinate stays the same but your y coordinate changes so your new coordinate is
(-8, 3)

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A line is drawn through (–7, 11) and (8, –9). The equation y – 11=-4/3 (x + 7) is written to represent the line. Which equations

marin [14]

Answer:

$y=-\frac{4}{3}x+\frac{5}{3}$

$4x+3y=5$

Step-by-step explanation:

we have

$y-11=-\frac{4}{3}(x+7)$ -----> equation of the line into point slope form

step 1

Find the equation of the line into slope intercept form

$y=mx+b$

where

m is the slope

b is the y-intercept (value of y when the value of x is equal to zero)

For x=0

$y-11=-\frac{4}{3}(0+7)$

$y=-\frac{28}{3}+11$

$y=\frac{5}{3}$

therefore

$b=\frac{5}{3}$

substitute

$y=-\frac{4}{3}x+\frac{5}{3}$ ----> equation of the line into slope intercept form

step 2

Find the equation of the line in standard form

$Ax+By=C$

we have

$y=-\frac{4}{3}x+\frac{5}{3}$

Multiply by 3 both sides

$3y=-4x+5$

$4x+3y=5$ ---> equation of the line in standard form

4 0

3 years ago

Read 2 more answers

Marnie purchased a dining room table and 6 chairs for $1,860.00 before discount and taxes. Kristen purchased a queen bed, dresse

CaHeK987 [17]

<span>Marnie purchased a dining room table and 6 chairs
=> costs 1 860.00 dollars before the discount and taxes.
Kristen purchased a queen bed, dresser and 2 night stand and a chest of drawer
=> Costs 5 775.00 dollars before discount and taxes.
Tax Rate = 8.2%
Marnie:
=> 1 860.00 x .082 = 152.52 dollars
=> 1860 + 152.20 = 2012.52 dollars
Kristen:
=> 5775.00 x 0.082 = 473.55
=> 5775 + 473.55 = 6248.55
Thus, Kristen received the biggest discount.</span>

5 0

3 years ago

The manager of a store is stacking boxes for a display. There are 18 boxes on the bottom row. Each successive row has one less b

lutik1710 [3]

So you start with 23
for every row up you have -3
equation is
# of boxes= 23- 3x
x representing the number of rows above the bottom
# of boxes= 23- 3x=
23-3(5)= 8
5 for the top row
bottom row has 23
1 row above 23-3(x)=20
2 row above 23-3(x)= 17
3....23-3(x)= 14
4....23-3(x)=11
5...23-3(x)= 8
therefore just add all boxes each row has
23+20+17+14+11+8= 83
I hope this helps

6 0

4 years ago

Read 2 more answers

Pablo wants to build a rectangular pen for the pig he is raising in his agriculture class. Pablo only has 36 feet of fencing. Wh

Ratling [72]

Answer:

Area of the rectangular pen is: $18 \,x-x^2$

Step-by-step explanation:

We need to specify that the perimeter of the rectangular area of side x adds to the amount of fence Pablo has (36 feet). Recall as well that the opposite sides of a rectangle are equal, so if there is a side of length x, there must be another one of this size as well (a total of 2 x in the perimeter),let's assume that the perpendicular sides to x are of length y, then:

Perimeter= 2 x + 2 y = 36

so, 2 (x+y) = 36 then (x+y) = 18

and therefore the side y should be:

y = 18 - x

Now we can write the formula for representing the area of the rectangle (product of both quantities: x * y

$Area=x\,*\,y = x\,(18-x) =18 \,x-x^2$

4 0

4 years ago

What one transformation could be used to show that AABC ~AA"B" C" directly?

stira [4]

Answer:

choicesGroup of answer choicesGroup of answer choicesGroup of answer choices

7 0

3 years ago