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ycow [4]
2 years ago
11

Please help explanation if possible

Mathematics
1 answer:
Nookie1986 [14]2 years ago
5 0

Answer:

y=-3x+5

Step-by-step explanation:

concepts: y=mx+b is slope intercept equation formula

m=slope

b= y intercept

Therefore we need to find the slope and y intercept

first find slope

m=\frac{y2-y1}{x2-x1}

let y2 be 2

let y1 be -4

let x2 be 1

let x1 be 3

\frac{2-(--4)}{1-3}

6/-2 = -3

m=-3

slope is -3

y= -3x+ b

we need find y intercept now

just plug in (1,2) into that equation

2=-3(1)+b

b=5

y=-3x+5

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In Exercises 27 and 28, find the domain of the function
Natali5045456 [20]

                                             Question 27

The graph on question 27 indicates that there are three points with the locations such as:

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In other words, there are three points that lie on the graph with the x-values such as:

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We know that the domain includes the set of x-values.

Hence, the domain of the function is:

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Since the points are not connected between them. In other words, there is not a continuous line.

Thus, the function represented on the graph has a discrete domain.

                                        Question 28

The graph on question 27 indicates that the line segment with the end-points (0, 25) and (7, 20).

Since there is a continuous line between the points from x = 0 to x = 7.

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2 years ago
If y varies directly as x, find the constant of variation if y = 25 and x = 5.
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Answer:

The constant of variation is 5

Step-by-step explanation:

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2 years ago
Help me with number question 7
oksano4ka [1.4K]
Just use the Pythagorean Theorem
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18x = 144
x = 8
 So the three sides of the triangle are
15, 8 and 17


5 0
3 years ago
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