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agasfer [191]
3 years ago
14

What is the slope of y=-x+7

Mathematics
2 answers:
marissa [1.9K]3 years ago
6 0

The slope of the equation y = -x + 7 equals -1.

Olenka [21]3 years ago
3 0

Answer:

-1

Step-by-step explanation:

This is the slope because x is the slope, and if there is no number in front of x then x is 1. There is also a negative in front of x which means the answer is -1.  

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Use the four-step process to find f'(x) and then find f'(1), f'(2), and f'(3).
Soloha48 [4]

Step 1: evaluate f(x+h) and f(x)

We have

f(x+h) = -(x+h)^2+6(x+h)-5 = -(x^2+2xh+h^2)+6x+6h-5

= -x^2-2xh-h^2+6x+6h-5

And, of course,

f(x)=-x^2+6x-5

Step 2: evaluate f(x+h)-f(x)

f(x+h)-f(x)=-x^2-2xh-h^2+6x+6h-5-(-x^2+6x-5)=-2xh-h^2+6h

Step 3: evaluate (f(x+h)-f(x))/h

\dfrac{f(x+h)-f(x)}{h}=-2x-h+6

Step 4: evaluate the limit of step 3 as h->0

f'(x) = \displaystyle \lim_{h\to 0} \dfrac{f(x+h)-f(x)}{h}=-2x+6

So, we have

f'(1) = -2\cdot 1+6 = 4,\quad f'(2) = -2\cdot 2+6 = 2,\quad f'(3) = -2\cdot 3+6 = 0

5 0
3 years ago
Please answer 14 and 15 please!
alexandr402 [8]

Answer: number 14 is 30.78 x 10 to the exponent of 11

Step-by-step explanation:

you multiply 8.1 and 3.8 together which would equal 30.78 and you add the exponents together since they are being multiplied.

8 0
2 years ago
I need help pleaseeeee!!
PilotLPTM [1.2K]

Answer:

option 4

Step-by-step explanation:

fog(x)=(x-5)²+4

=x²-10x+25+4

fog(x)=x²-10x+29

8 0
3 years ago
Es There are 30 students on the debate team and 20 students on the math team. Ten students are on both the math team and
irakobra [83]
There will be 40 students!!!
5 0
3 years ago
Can someone help me plzzz!!
ss7ja [257]

Answer:

Multiply dno. plus nume. by 2

Step-by-step explanation:

get a base of 100

6 0
2 years ago
Read 2 more answers
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