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3 years ago

Find the average rate of change for fx) = x2 – 3x – 10 from x = 4 to x = 6.

Mathematics

1 answer:

Leviafan [203]3 years ago

6 0

Answer:

Step-by-step explanation:

The rate of change is defined as

f(x2) - f(x1)

--------------------

x2-x1

x2 = 6

f(6) = x^2 – 3x – 10 = 6^2 -3*6 -10 = 36 - 18-10=8

x1 = 4

f(4) = x^2 – 3x – 10 = 4^2 -3*4 -10 = 16 - 12-10=-6

Substitute the values into the expression

8 - -6

--------------------

6-4

8+6

------------

14/2= 7

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Help? Please? This is algebra math

Over [174]

Answer:

You count the blocks and then put the amount of blocks before:)

(That sounds confusing but it sounds harder than it is)

The answer would be 3xy + 4x

Step-by-step explanation:

How many xy blocks are there? yea there's 3 so you do 3xy

you can't add xy and x blocks together because xy is a different unit than x (xy is x times y) so then you'd count the other x blocks seperately

(I'm sorry if I'm wrong on this lol)

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3 years ago

WILL GIVE BRAINLIEST HELP I NEED THE PROCEDURE ALSO 5-6 of the 42 puppies took a nap how many puppies did not take a nap

DIA [1.3K]

Answer:

uhhhh, well saying 5-6 doesn't help but here are the answers:

(if 6 puppies sleep): 36

(if 5 puppies sleep): 37

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2 years ago

The midpoint of AB is M(-4,-3). If the coordinates of A are (-1, -2), what

marysya [2.9K]

Answer:

$B(-7,-4)$

Step-by-step explanation:

Let the co-ordinates of B be $(x_{2},y_{2})$

If a point $M(x,y)$ is a mid-point of line segment AB with $A(x_{1},y_{1})$ and $B(x_{2},y_{2})$ , then:

$x=\frac{x_{1}+x_{2}}{2}\\y=\frac{y_{1}+y_{2}}{2}$

Here, $M(x,y)$ is $M(-4,-3), A(x_{1},y_{1})$ is $A(-1,-2)$ .

So, $x = -4, y = -3, x_{1} = -1, y_{1}=-2$

Plug in the formula and solve for unknowns.

$x=\frac{x_{1}+x_{2}}{2}\\-4=\frac{-1+x_{2}}{2}\\x_{2}=-8+1=-7\\\\y=\frac{y_{1}+y_{2}}{2}\\-3=\frac{-2+y_{2}}{2}\\y_{2}=-6+2=-4$

Therefore, the co-ordinates of point B are $B(-7,-4)$

4 0

2 years ago

If f(x)=x^2-2x find f(-3)

Arturiano [62]

Just substitute (-3) wherever you see x
(-3)^2 -2(-3) +3= 9+6+3=18 ( SORRY IF IM WRONG OR DID IT WRONG?? )

7 0

3 years ago

PLEASE HELP ASAP! I have no idea where to start with this.

lozanna [386]

Answer:

h (-5) = 41/4 or 10.25

h (-2) = -3

h (3) = 25/4 or 6.25

Step-by-step explanation:

h (-5) = 1/4(-5)^2 + 4

h (-5) = 1/4(25) + 4

h (-5) = 41/4 or 10.25

h (-2) = -3 (this is given to you in the function)

h (3) = 1/4 (3)^2 + 4

h (3) = 1/4(9) + 4

h (3) = 25/4 or 6.25

4 0

2 years ago