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DiKsa [7]
3 years ago
12

How to start the problem off. (substitution)

Mathematics
1 answer:
otez555 [7]3 years ago
5 0
Do you have to use substitution? 
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Use the work shown below to write the equation for a line that passes through the points (−5, 0) and (−1, −8). 1. Use slope form
atroni [7]

Answer:

<h2>y = -2x - 10</h2>

Step-by-step explanation:

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have two points (-5, 0) and (-1, -8). Substitute:

m=\dfrac{-8-0}{-1-(-5)}=\dfrac{-8}{4}=-2

The slope-intercept form of an equation of a line:

y=mx+b

m - slope

b - y-intercpet

Put the value of the slope and coordinates of the point (-5, 0) to the equation of a line:

0=-2(-5)+b

0=10+b        <em>subtract 10 from both sides</em>

-10=b\to b=-10

Finally:

y=-2x-10

3 0
3 years ago
Read 2 more answers
Please answer for me ! And if you do answer Tysm please show your work also! ❤️
dezoksy [38]
4 is the answer
Divide by negative 5 on the right
6 0
2 years ago
What is the percent decrease from $16 to $4?
pantera1 [17]
75% ..................


5 0
3 years ago
Please help<br><br> isolate x in <br> x+3y=1
Evgesh-ka [11]
Subtract 3y and move it to the right
X= 1 - 3Y
8 0
2 years ago
Read 2 more answers
What the answer to this question
Sonja [21]

To solve this, you need to isolate/get the variable "u" by itself in the inequality:            u = unknown number

2u - 3 < 1       Add 3 on both sides

2u - 3 + 3 < 1 + 3

2u < 4        Divide 2 on both sides to get "u" by itself

u < 2       (u is any number less than 2)

When the inequality sign is >/< (greater than/less than), the dot/endpoint is an open/unfilled circle.

When the inequality sign is ≥/≤ (greater than or equal to/less than or equal to), the dot is a closed/filled circle.

u < 2        

Start making a ray by placing an open circle on 2(click on the dot/endpoint to change it to be open if it isn't already), then have the ray point left where the numbers would be decreasing because "u" is any number less than 2. If you can place the end of the ray at the end of the number line.

3 0
3 years ago
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