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MariettaO [177]
2 years ago
12

For the function f(x) = 4x – 6, find the slope of the tangent line at x = -7.

Mathematics
1 answer:
mel-nik [20]2 years ago
7 0

Answer:

f(-7)=-34

Step-by-step explanation:

f(x)=4x-6

f(-7)=4(-7)-6

f(-7)=-28-6

f(-7)=-34

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Help and please explain so I can do it on my own. There are a couple more on this sheet.​
Andreas93 [3]

Answer:

(2, -10)

Step-by-step explanation:

so first i find the axis of symmetry using the equation x= -b/2a

in this problem

a=3

b= -12

c= 2

- (-12)/ 2(3) = 2

2 will be the x point for your vertex

you then plug in your x point into the original equation and solve for y

y = 3(2)^2 - 12(2) +2

y = -10

Vertex is then (2, -10)

8 0
2 years ago
When would you use a negative number to describe a real world amount? Give an example
Dvinal [7]
When owe the bank some money or some friends so it could be -1.7h+19.7=187
8 0
2 years ago
Never mind my question but free brainiest
Sav [38]

What is your question?

6 0
3 years ago
Read 2 more answers
Find a number which decreased by 12 equals 3 times it’s opposite
-BARSIC- [3]

Answer:

The number is 3.

Step-by-step explanation:

To find : A number which decreased by 12 equals 3 times it’s opposite ?

Solution :

Let the number be 'x'.

It's opposite is '-x'.

A number which decreased by 12 equals 3 times it’s opposite

i.e. x - 12 = 3(-x)

Solving the equation,

x-12=-3x

x+3x=12

4x=12

x=\frac{12}{4}

x=3

Therefore, the number is 3.

4 0
2 years ago
A camera manufacturer spends $2,250 each day for overhead expenses plus $6 per camera for labor and materials. The cameras sell
andriy [413]
2250 + 6x = 16x
2250 = 16x - 6x
2250 = 10x
2250/10 = x
225 = x <=== they must sell 225 cameras to equal daily costs

if they increase production by 50.......x = 225 + 50 = 275
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Their daily profit would be $500.
8 0
3 years ago
Read 2 more answers
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