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3 years ago

Anyone knows this?? Please I rly NEED help ASAP!! (ᗒᗣᗕ)

Mathematics

1 answer:

Kobotan [32]3 years ago

8 0

Answer:

Translations mapping = (x, y) -----> (x+a, y+b)

Reflections across the y-axis = (x, y) -----> (-x, y)

Reflections across the x-axis = (x, y) -----> (x, -y)

Rotation: 90 degree: (x, y)-----> ( -y, x )

Rotation: 180 degree: (x, y)-----> (-x, -y)

Rotation: 270 degree: (x, y)-----> (y, -x)

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Which point is on the graph of f(x) = 2*5^x

vodomira [7]

Answer:

Option B (1,10)

Step-by-step explanation:

we have

$f(x)=2(5^x)$

we know that

If a ordered pair is on the graph of f(x) then the ordered pair must satisfy the function f(x)

<u><em>Verify each case</em></u>

case A) (0,0)

For x=0

$f(x)=2(5^0)\\f(x)=2(1)=2$

Compare the value of f(x) with the y-coordinate of the ordered pair

$2\neq 0$

therefore

The ordered pair is not on the graph of f(x)

case B) (1,10)

For x=1

$f(x)=2(5^1)\\f(x)=2(5)=10$

Compare the value of f(x) with the y-coordinate of the ordered pair

$10=10$

therefore

The ordered pair is on the graph of f(x)

case C) (0,10)

For x=0

$f(x)=2(5^0)\\f(x)=2(1)=2$

Compare the value of f(x) with the y-coordinate of the ordered pair

$2\neq 10$

therefore

The ordered pair is not on the graph of f(x)

case D) (10,1)

For x=10

$f(x)=2(5^{10})\\f(x)=2(9,765,625)=19,531,250$

Compare the value of f(x) with the y-coordinate of the ordered pair

$19,531,250\neq 1$

therefore

The ordered pair is not on the graph of f(x)

7 0

3 years ago

Which of the following points lies on the line 2x+3y=5

Romashka [77]

Answer:

1,1

Step-by-step explanation:

Basically you enter this equation into a graphing calculator and see which x and y value match and those are your points . Or you can substitute values in for x by isolating y by itself

5 0

3 years ago

Aleena expands 2xx+3-5(x-2) as 2x2+3-5x-10. Has she expanded it correctly? Please identify the mistakes and write the correct wa

Nimfa-mama [501]

The given expression is :

2xx+3-5(x-2)

We know that, $x{\cdot}x=x^2$

$=2x^2+3-5(x-2)\\\\=2x^2+3+(-5)(x)+(-5)(-2)\\\\=2x^2+3-5x+10$

Aleena expands 2xx+3-5(x-2) as 2x²+3-5x-10. She is mistaken because the sign before 10 should be +10 instead of -10. Hence, the correct expanded form is 2x²+3-5x+10. Hence, this is the required solution.

5 0

3 years ago

Write an expression so that when u divided 1/4 by a number the answer will be larger

Viktor [21]

20x1/4=5
Think thats what you mean

4 0

3 years ago

6k+4k<-4k+6 solve for k

Genrish500 [490]

Answer:

k < 3/7

Step-by-step explanation:

Step 1:Sinplify both sides of the inequality

10k <-4k+6

Step 2: Add 4k to both sides

10k + 4k < -4k + 6 + 4k

14k < 6

Step 3:Divide both sides by 14

14k/14 < 6/14

k <3/7

Note:Provided by Mathpapa an Algebra caculator

6 0

2 years ago