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11Alexandr11 [23.1K]
2 years ago
8

F(x) = x^2+ 2x-5

Mathematics
1 answer:
Mekhanik [1.2K]2 years ago
4 0

Answe

Step-by-step explanation:

B

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Find the slope of the line that passes through (4,2) and (9,1)?
pshichka [43]

Answer:

The slope of the line is \displaystyle -\frac{1}{5}.

Step-by-step explanation:

We are given two coordinate points:

  • (4, 2)
  • (9, 1)

We are asked to find the slope of the line.

We can use the rise-over-run formula to solve for the slope of the line.

\displaystyle \text{slope} = \frac{\text{rise}}{\text{run}}\\\\\text{slope} = \frac{y_2-y_1}{x_2-x_1}

However, we firstly need to name our coordinate points.

In math, we can label our coordinates using the following label system:

(x_1, y_1), (x_2, y_2)

Therefore, we can also label our coordinates as such:

  • x_1 = 4
  • y_1 = 2
  • x_2 = 9
  • y_2 = 1

Now, we can supply these values into the formula and solve for our slope, or a better known variable, <em>m</em>.

\displaystyle m = \frac{1 - 2}{9 - 4}\\\\m = \frac{-1}{5}\\\\m = -\frac{1}{5}

Therefore, our slope is \displaystyle -\frac{1}{5}.

8 0
3 years ago
Read 2 more answers
I think of a number and multiply it by 4. I then add 8 and I'm left with an answer of 30. What number did I think of? Form and s
postnew [5]

Answer: number= 5.5; equation: 4x+8=30

Step-by-step explanation:

Take x for the unknown number. Then just follow the words and turn them into mathematical symbols. Easy.

5 0
3 years ago
Find the value of x so that the function has the given value. <br> q(x)=12x−3; q(x)=−4
Anna [14]

Answer:

-  \frac{1}{ 12}

Step-by-step explanation:

since q(x)=-4

substitute

hence

-4=12x-3

take -3 to the other side where it becomes positive

therefore

-1=12x

divide by 12

you will get the above answer

5 0
2 years ago
Sally has 4 apples and maria has 9. How many apple to they have in total
krek1111 [17]

Answer:

13

Step-by-step explanation:

4 + 9

[ 9 + 2 = 11 ]

[ 11 + 2 = 13 ]

8 0
1 year ago
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Over a period of 12 hours, the temperature dropped 60 degrees. What was the average change in temperature in one hour?
dybincka [34]
The change in temperature for 1 hour would be -5. hope this helps.
7 0
3 years ago
Read 2 more answers
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