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3 years ago

Find the general linear equation (Ax+By+C=0) of a straight line that is horizontal and that passes through (-4,-2)

Mathematics

1 answer:

sukhopar [10]3 years ago

5 0

Equation of line is:

$y+2 = 0$

Step-by-step explanation:

The slope is defined the rate of change of line w.r.t x. When a line is horizontal. it is parallel to x-axis which means that it's slope is equal to zero.

So the slope intercept form of equation

$y = mx+b$

become

$y = b$

Given point is: (-4,-2)

Putting the value of y in equation

$b = -2$

So the equation will become:

$y = -2$

It can also be written as:

$y+2 = 0$

Keywords: Equation of line, slope

Learn more about equation of line at:

#LearnwithBrainly

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-4=x/20-5 Solve for x

garik1379 [7]

Answer:

x = 20

Step-by-step explanation:

I'm no mathematician but...

- 4 = x / 20 - 5

If you move the five to the other side using addition you get:

1 = x / 20

Then multiply 20 on both sides

20 = x

6 0

3 years ago

Hannah deposited the same amount of money into her savings account each month after 5 months she had $2,550 into the savings acc

DiKsa [7]

Answer:

a = 250x + 1300

Step-by-step explanation:

We have pairs (5, 2550) and (8, 3300)

Find the rate of change:

(3300 - 2550)/(8 - 5) =
750/3 =
250

$250 is the amount added to savings account every month

Initial amount was:

2550 - 5*250 =
2550 - 1250 =
1300

Since the change is linear and we have y-intercept and slope, we can show the amount after x months as:

a = 250x + 1300

5 0

3 years ago

* Hello I'm giving ALOT of points to the one who can answer this question with an ANSWER & a STEP-BY-STEP EXPLAINATION so th

tangare [24]

Answer:

From the graph and data points, you can observe that Group B has a HIGHER range and has a greater variability. so it's NOT 1. 4. or 3. THEREFORE it's 2.

Explanation:

You start out by finding the mean (finding the sum of the data values and then dividing the sum by the number of data values)

and subtracting the first plot by the last in each graph.

(at least I think)

I've been through this topic. (it was a long time ago since I'm now in highschool so this might be different now as the grading curriculum has changed)

8 0

3 years ago

Solve for m. -7m + -2 = -72 m =

ElenaW [278]

Answer:

m=10

Step-by-step explanation:

add 2 on both sides then divide both sides by -7

5 0

3 years ago

Read 2 more answers

The ratio of boys to girls in a class is 3:4. There are 35 students in the class. How many more girls than boys are there?

lisov135 [29]

Answer:

Step-by-step explanation:

sum the parts of the ratio, 3 + 4 = 7 parts

Divide the number of students by 7 to find the value of one part of the ratio

35 ÷ 7 = 5 ← value of 1 part of the ratio, then

3 parts 3 × 5 = 15 ← number of boys

4 parts = 4 × 5 = 20 ← number of girls

20 - 15 = 5

There are 5 more girls than boys

4 0

3 years ago