The input x = 2 leads to more than one output. In this case, it leads to y = 20 and y = 40 simultaneously. This is the reason why we don't have a function. A function is only possible if each input x leads to exactly one y output.

Put another way: we cannot have x repeating any values if we want a function.

Side note: We could have y repeat however. So it's possible to have a function with the two points (1,5) and (3,5).

6 0

3 years ago

BRAINLY PLS HELP ME OUT ASP ! NOW PLS !

lilavasa [31]

Answer:

 $- \sqrt{10} \\ \sqrt{10 \\ }$ 

A and D

3 0

2 years ago

Read 2 more answers

What is the equation of a circle with diameter AB that has endpoints A(0, 0) and B(8, 6)?

fgiga [73]

Answer:

A. $(x-4)^2+(y-3)^2=25$

Step-by-step explanation:

Radius:

The length of diameter $(d)$ is the distance between A and B.

$d=\sqrt{(8-0)^2+(6-0)^2}=\sqrt{64+36}=\sqrt{100}=10\\\\radius(r)=\frac{d}{2}=\frac{10}{2}=5$

Centre:

Since A and B are end points of the diameter, centre is the mid point of these two. Let $(x,y)$ be the centre of the circle.

$x=\frac{8+0}{2}=4\\\\y=\frac{6+0}{2}=3\\\\$

Centre is $(4,3)$

Equation of circle:

If $(a,b)$ is the centre of the circle and $r$ be the radius. Equation of circle is given by:

$(x-a)^2+(y-b)^2=r^2$

$Here\ (a,b)=(4,3)\ and\ r=5\\Equation:\ (x-4)^2+(y-3)^2=5^2\\(x-4)^2+(y-3)^2=25$

6 0

3 years ago

I need help on this questionnnn

AnnyKZ [126]

Answer:

E(-5, - 6) D(5,-6) C(0,0)

Step-by-step explanation:

The strategy here is run then rise/fall

For example: for E, you run back - 5, then fall - 6

6 0

3 years ago