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3 years ago

not sure how I would solve this

Mathematics

2 answers:

Marat540 [252]3 years ago

7 0

When using the equation y=Mx+b you always graph b first
In this case, -1 is your b
Graph -1 on (0,-1)
2/7 is your slope
from (0,-1) you go up 2 and over 7.

zmey [24]3 years ago

4 0

Answer:

you graph the points on the line

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B. Using your answer in letter a or write the equation of the line in the form Ax + By = C

Svetradugi [14.3K]

Answer:

Step-by-step explanation:

(1, 5.5) ; (2, 9)

Slope = $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\$

$= \frac{9-5.5}{2-1}\\\\=\frac{3.5}{1}\\\\= 3.5$

= 7/2

m = 7/2 ; (2 , 9)

y - y1 =m(x -x1)

$y - 9 = \frac{7}{2}(x- 2)\\\\y - 9 = \frac{7}{2}x - \frac{7}{2}*2\\\\y -9 = \frac{7}{2}x - 7\\\\y = \frac{7}{2}x - 7 + 9\\\\y = \frac{7}{2}x + 2$

Multiply the equation by 2

$2y = 2*\frac{7}{2}x + 2 *2\\\\2y = 7x + 4\\\\7x - 2y = -4\\$

4 0

3 years ago

X + y - z = - 2, 2x - y + z = 8, - x + 2y + 2z = 10

Maurinko [17]

Answer:

Step-by-step explanation:

3 0

2 years ago

Colin invests £4000 into his bank account. He receives 5% per year simple interest. How much will Colin have after 3 years? Give

MakcuM [25]

Answer:

2750

Step-by-step explanation:

7 0

3 years ago

Can someone help me with this problem?

pashok25 [27]

No, it is not a solution.

Let's plug 5 into the equation where p is.

10(5) - 2 > 97

50 - 2 > 97

48 > 97

This is false, 48 is less than 97.

7 0

3 years ago

Read 2 more answers

Identify the percent of change as an increase or decrease 38 staples to 55 staples find the percent of change round to the neare

erik [133]

Answer:

The percent of change is 44.7%

Step-by-step explanation:

Given that:

38 staples to 55 staples

As the number of staples are increased, therefore, the percent will also increase.

Difference = 55 - 38 = 17 staples

Percent of change = $\frac{Difference}{Original\ number}*100$

Percent of change = $\frac{17}{38}*100$

Percent of change = 0.447*100

Percent of change = 44.7%

Hence,

The percent of change is 44.7%

6 0

2 years ago

￼not sure how I would solve this

not sure how I would solve this