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andrew-mc [135]
3 years ago
15

Find the y intercept. I already found the slope is 9.

Mathematics
1 answer:
jeka57 [31]3 years ago
8 0

The slope-intercept form: y = mx + b

We have the slope m = 9, therefore: y = 9x + b.

Next. We have the table:

x | -5 | -2 | 1 | 3 | 4 |

y |-46|-19| 8 |26|35|

(1, 8) → x = 1, y = 8

substitute the values of x and y to the equation:

8 = 9(1) + b

8 = 9 + b |-9

b = -1

Answer: y = 9x - 1 → y-intercept is -1.

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Write the equation of the line that passes through the points (4,-6) and (-2,3)
yarga [219]

Here is your answer and an explanation

Answer: y = -2/3x

Explanation:

This can be determined by calculating the gradient of the straight line, using:

m=ΔyΔx

=−6−34−(−2)

=−96

=−32

Then we use the slope-point form of the straight line:

y−y1=m(x−x1)

to give:

y−3=−32(x−(−2))

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∴y=−32x

7 0
3 years ago
Exact = 50 Approximate = 45
Nikitich [7]

Answer:

Approximate of error = 11.11 % (Approx.)

Step-by-step explanation:

Given:

Exact value = 50

Approximate value = 45

Find:

Approximate of error

Computation:

Approximate of error = [(Exact value - Approximate value)/Approximate value]100

Approximate of error = [(50 - 45)/45]100

Approximate of error = [(5)/45]100

Approximate of error = [0.11111]100

Approximate of error = 11.11 % (Approx.)

3 0
3 years ago
In a sample of 100 students, 30 wear size medium t-shirts. Use a proportion to calculate approximately how many medium t-shirts
Talja [164]

Answer:

282 students

Step-by-step explanation:

7 0
4 years ago
What is the closest to the area of this figure?<br> d = 17 in
OverLord2011 [107]

the answer would be b the answer is 114

6 0
3 years ago
6 is added a number x.then the result is multiplied by 9. the final answer is greater than 99
drek231 [11]

So this inequality is going to be written as 9(x + 6) > 99


Firstly, you want to foil 9(x + 6), which will look like this: 9x + 54 > 99


Next, subtract 54 on both sides of the equation: 9x > 45


Lastly, divide both sides by 9, and your answer will be x > 5

6 0
4 years ago
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