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4 years ago

8

Please Help! Thanks whoever can answer my question!

2 answers:

nlexa [21]4 years ago

4 0

A function is a special relationship where each input has a single output.
therefore :
A is not a function; x=0; ⇒y₁=3; y₂=4
C is not a function; x=2;⇒ y₁=1; y₂=8
D is not a function; x=1;⇒y₁=2, y₂=-3

only B is a function; each input has a single output.

Tom [10]4 years ago

4 0

Answer:

The answer is for sure A. Hope this helped!

Step-by-step explanation:

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1. A grand tour of four cities begins at city A and makes successive stops at cities B, C,

vampirchik [111]

Using <u>distance between two points</u>, it is found that the total distance covered on the tour is of 3400 miles.

Given two points $(x_1,y_1)$ and $(x_2,y_2)$ , their distance is given by:

$D = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$

In this problem, the formula is used to find the distance covered on each tour, hence:

$d_{AB} = \sqrt{(400 - 0)^2 + (300 - 0)^2} = 500$

$d_{BC} = \sqrt{(-800 - 400)^2 + (800 - 300)^2} = 1300$

$d_{CD} = \sqrt{(-800 - (-800))^2 + (0 - 800)^2} = 800$

$d_{DA} = \sqrt{(0 - (-800))^2 + (0 - 0)^2} = 800$

Then, the total <em>distance </em>is given by the sum of each separate distance, hence:

$d = d_{AB} + d_{BC} + d_{CD} + d_{DA} = 500 + 1300 + 800 + 800 = 3400$

The total distance covered on the tour is of 3400 miles.

You can learn more about <u>distance between two points</u> at brainly.com/question/25929988

3 0

2 years ago

- 2x < -10 and x-2 <6

liq [111]

Answer: x > 5 and x < 10

Step-by-step explanation:

in the first inequality, divide both sides by -2 and remember to reverse the inequality sign when you divide by a negative number.

For the second one, add 4 to both sides.

3 0

3 years ago

Find the y-intercept of the quadratic function f(x) = (2x - 5)2

Vera_Pavlovna [14]

Answer: -10

Step-by-step explanation:

f(x) = (2x - 5)2

f(x) = 4x - 10

To find y-intercept put x = 0, this is because x is 0 at y-axis line.

f(0) = 4*0 - 10

f(0) = -10

8 0

3 years ago

Read 2 more answers

Can you guys help me plz

julsineya [31]

Answer:

1) x>1

2) x<6

3) x>34

4) x>-4

5) x<2

6) x>-36

7) x<=4

8) x>-2

9) x>=2

10) x>14

6 0

3 years ago

Kaden bought dried apples and dried peaches at the market costing him a total $15.15. The dried apples cost $2.20/lb and the dri

vazorg [7]

Kaden bought 4.5 lb. of dried apples costing $9.15. Then he bought 2 lb of peaches costing him $6. 9.15+6=$15.15.

4 0

3 years ago