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2 years ago

Find the equation of a straight line passing through the points (2, -2) and (3, -4)

Mathematics

1 answer:

velikii [3]2 years ago

5 0

Answer:

y = -2x + 2

Step-by-step explanation:

slope is found with (change in y/change in x), or in this case, (-4--2,3-2), which is -2

with the equation y = -2x + b, solve for b by plugging in the x and y values of one of the points

using (2, -2):

-2 = -2(2) +b

b = 2

so the equation is y = -2x + 2

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Please help! which multiplication expression is equivalent to

jenyasd209 [6]

the answer is C................................

5 0

3 years ago

0= -115 sin= cos = tan

Alina [70]

Answer:

Step-by-step explanation:

Tito wants to buy some peanut butter to donate as much as possible.

There some brands are given with their price.

we will calculate the price of per ounce peanut butter of each brand.

A. Nutty : 12 ounces for $2.19

cost per ounce =

= $0.1825 ≈ $0.18 per ounce

B. Grandma's : 18 ounces for $2.79

cost per ounce =

= $0.155 ≈ $0.16 per ounce

C. Bee's : 0.28 ounces for $4.69

cost per ounce =

= $16.75 per ounce

D. Save-A-Lot : 40 ounces for $6.60

cost per ounce =

= $0.165 ≈ $0.17 per ounce

The lowest price is $0.16 per ounce. So he should buy Grandma's peanut butter.

8 0

3 years ago

Write an equation of the line below

gregori [183]

Answer:

The equation of the line is:

$y = 4x + 3$

Step-by-step explanation:

We know that the slope-intercept of line equation is

$y = mx+b$

Where m is the slope and b is the y-intercept

Given the two points on a line

(0, 3)

(-2, -5)

Finding the slope between (0, 3) and (-2, -5)

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(0,\:3\right),\:\left(x_2,\:y_2\right)=\left(-2,\:-5\right)$

$m=\frac{-5-3}{-2-0}$

$m=4$

We know that the y-intercept can be computed by setting x=0 and determining the corresponding y-value.

From the graph, it is clear:

at x = 0, y = 3

Thus, y-intercept = b = 3

Substituting m = 4 and b = 3 in the slope-intercept form of line equation

$y = mx+b$

$y = 4x + 3$

Therefore, the equation of the line is:

$y = 4x + 3$

8 0

2 years ago

My hw says, "suppose E has a coordinate of -1 And EG= 7" what is the possible coordinate of G?

evablogger [386]

Answer:

-8,6

Step-by-step explanation:

from what i can tell this is a 1D problem. |E-G|=7, and E=-1, so -1-G=+-7. G=-8 or 6

7 0

3 years ago

Read 2 more answers

Three years after paying $2800 in a startup company, you sell for $2200. The total percent return is what?

masha68 [24]

Answer:

The total percentage return is 26.19

Step-by-step explanation:

Given as :

The amount paid for three years = $ 2800

So, Total amount paid for three years = $ 2800 × 3 = $ 8400

The return amount after three years = $ 2200

The time period = 3 years

Let the percentage return = x %

So, According to question

x % of $ 8400 = $ 2200

Or, x % = $\frac{2200}{8400}$

Or, $\frac{x}{100}$ = $\frac{11}{42}$

∴ x = $\frac{11}{42}$ × 100

I.e x = 26.19

Hence The total percentage return is 26.19 Answer

3 0

3 years ago