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3 years ago

If the point (-1-5) is reflected across x-axis, whot aro tho coordinates of th new point? ?

Mathematics

1 answer:

Gnoma [55]3 years ago

5 0

Answer:

-1, 5

Step-by-step explanation:

With the graph, when you switch the x axis, you have to make the additive inverse for the y. If Y, additive the X.

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Use the interactive to graph the line that goes through the points (–4,–2) and (2,0). The point (a,1) lies on the line you graph

SashulF [63]

The equation of the line passing through points $A(x_1,y_1), B(x_2,y_2)$ is:
$y= \dfrac{y_2-y_1}{x_2-x_1}(x-x_1) +y_1$ .

If A(-4,-2) and B(2,0), then
$y= \dfrac{0-(-2)}{2-(-4)}(x-(-4))+(-2) \\ y= \dfrac{2}{6} (x+4)-2 \\ y= \dfrac{1}{3} x- \dfrac{2}{3}$ .

<span>If point (a,1) lies on the line
</span>
$y= \frac{1}{3} x- \frac{2}{3}$ ,

<span> then
</span>
$1=\dfrac{1}{3} a- \dfrac{2}{3} \\ \dfrac{5}{3} =\dfrac{1}{3} a \\ a=5$ .

Answer: $y= \frac{1}{3} x- \frac{2}{3}$ , a=5.

5 0

3 years ago

Read 2 more answers

14(150+10d)+23(80+6d)

algol13

Answer:

3940+278d

Step-by-step explanation:

1. Distribute 14 and 23 through their parenthesis,

2100 + 140d + 1840 +138d

2. Add the common terms,

3940+ 278d

4 0

3 years ago

Read 2 more answers

-4(1.75+1x)=18 What does x equal

77julia77 [94]

Answer:

x = -6.25

Step-by-step explanation:

-4(1.75 + 1x) = 18

1.75 + 1x = 18/-4

1.75 - 1.75 + x = -4.5 - 1.75

x = -6.25

Answer: x = -6.25

8 0

3 years ago

What is the completely simplified form of the expression 2(1 – 3x) – (5x + 1)?

Nady [450]

Answer:

i think it's 11x-1

Step-by-step explanation:

2(1-3x)-(5x+1)

2-6x-5x-1

2-11x-1

11x-1

3 0

2 years ago

Can you please help me I don't understand

MA_775_DIABLO [31]

For #11 you add 54 + 59+ 57+ 54. Then you have 224. Then divide 224 by 4 since there are 4 numbers. Your answer should be 56 inches as the average, or mean.
Remember, when you divide, you divide by the number of all the numbers. I'm trying to make sense but hope this helps!

3 0

2 years ago