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Rina8888 [55]
3 years ago
15

Number 8 and 9 pls, if u answer u get brainlist rank!

Mathematics
1 answer:
mylen [45]3 years ago
8 0

Answer:

8.

Denote the equation : y = ax + b

Use the first 2 values of x and y in table:

3a + b = 21

5a + b = 35

Subtract the 2 equations:

=> 2a = 14 => a = 7 => b = 21 - 3 x 7 = 0

=> The solution is  y = 7x

9.

Denote the equation : y = ax + b

Use the first 2 values of x and y in table:

5a + b = 17

10a + b = 22

Subtract the 2 equations:

=> 5a = 5 => a = 1 => b = 17 - 5 x 1 = 17 - 5 = 12

=> The solution is  y = x + 12

Hope this helps!

:)

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Which equation best represents the line of best fit for the scatterplot?
Elena L [17]

Answer:

The answer for this problem is

C) y = -x + 6

Step-by-step explanation:

I know this because I just did the test

5 0
3 years ago
Thomas has $30 to spend at the amusement park. Rides cost $2 each and admission at the gate is $6. What is the maximum number of
Rudiy27

Answer:

B.2r+6=30

Explanation:

It costs $6 dollars just to get in. Subtract 6 from 30. 30-6=24

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7 0
3 years ago
Read 2 more answers
What is the slope of the line that contains these points? xxx -4−4minus, 4 -3−3minus, 3 -2−2minus, 2 -1−1minus, 1 yyy 222 555 88
Charra [1.4K]

Given:

The table of values is

x        y

-4      2

-3      5

-2       8

-1       11

To find:

The slope of the line that contains these points.

Solution:

From the given table consider any two point.

Let the line passes through the points (-4,2) and (-3,5). So, the equation of the line is

y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)

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Using distributive property, we get

y-2=3x+12

y=3x+12+2

y=3x+14

Therefore, the required equation of line is y=3x+14.

4 0
3 years ago
If Ryan slices the pyramid parallel to any side of the pyramid other than the base, what will the shape of the cross section be?
Anon25 [30]
<span>A cross section parallel to any side other than the base that has a shape of a trapezoid.</span>
6 0
3 years ago
Read 2 more answers
Is this correct???? TYSM
vfiekz [6]

Yep, this is all correct!

-6/2 = y/4

y = (-6×4)/2

y = -24/2

y = -12


x was multiplied by 2

and y was also multiplied by 2

5 0
3 years ago
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