All categories

3 years ago

Is (5, 10), (-8, 3), (-1, 7), (-5, 10) A Function ?

Mathematics

1 answer:

ankoles [38]3 years ago

6 0

Answer:

Step-by-step explanation:

Notice that the inputs {5, -8, -1, -5} are all different. So we can immediately conclude that this is a function.

If the inputs were {5, -8, -1, 5}, this would not be a function, as the same input value (5) would result in two different outputs.

You might be interested in

A remote control car races down the street at 26 miles per hour. Two hours later a second remote control car races straight down

Neporo4naja [7]

Answer:

4 hours

Step-by-step explanation:

Given

Car 1:

$Speed = 26mph$

$Time = h$

Car 2:

$Speed = 52mph$

$Time = h - 2$ --- i.e. 2 hours after car 1

Required

Determine the time car 1 will meet car 2

To do this, we calculate the distance of both cars using:

$Distance = Speed * Time$

For Car 1:

$Distance = 26 * h$

$Distance = 26h$

For Car 2:

$x^{2} Distance = 52 * (h - 2)$

Open bracket

$Distance = 52h - 104$

When car 2 meets up with car 1, they are at the same distance.

So:

$26h = 52h - 104$

Collect Like Terms

$26h - 52h = -104$

$-26h = -104$

Solve for h

$h = \frac{-104}{-26}$

$h = 4$

<em>Car 2 will catch car 1; 4 hours from the start</em>

8 0

3 years ago

Find three consecutive odd integers such that the sum of the first and the third is 34,

nataly862011 [7]

Answer:

15,17,19

Step-by-step explanation:

assume the first number is X which means the third number will be X+4 so X+ X+4=34

solve for X which will be 15

thus the numbers are 15,17 and 19

6 0

3 years ago

If a spider can move 4/5 of a mile every hour how many hours would it take for the spider to go 4 miles

Mademuasel [1]

Answer:

18 miles

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

Evaluate the following. -56÷7=-8?? Or is it just 8??

Svetradugi [14.3K]

The equation that you put is correct

4 0

4 years ago

Read 2 more answers

A system of equations is shown below:

Alexandra [31]

Hello,

Answer B
2x+y=6 (1)
-4x+3y=8 (2)

2*(1)+(2)==>5y=20==>y=4
==>2x=6-4==>2x=2==>x=1

8 0

3 years ago