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3 years ago

How do you solve this

Mathematics

2 answers:

Nikolay [14]3 years ago

6 0

I think it is asking:

What happens to y, to make the x, that goes next to it in the column?

You might have to double check that though.

patriot [66]3 years ago

5 0

Answer:a

Step-by-step explanation:

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Please Help ASAP PLEASE !!!!!!!

saul85 [17]

Answer:

transitive property of equality

Step-by-step explanation:

I know cus i took the test also sorry it took so long dude

6 0

3 years ago

Linear functions can be used to find the price of a building based on its floor area below are two of these functions,

Alborosie

Answer:

Part A) see the explanation

Part B) see the explanation

Part C) see the explanation

Step-by-step explanation:

The complete question in the attached figure

Part A) Find and compare the slopes

we have

Function 1

$y=40x+15,000$

This is a linear equation in slope intercept form

$y=mx+b$

where

y is the price of the building in thousands

x is the floor area in square foot

m is the slope

b is the y-intercept

we have

$m=\$40\ per\ ft^2$

Function 2

we know that

The formula to calculate the slope between two points is equal to

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

take two points from the data in the table

(400,32,000) and (700,56,000)

<u><em>Remember that the price in the table is in thousands</em></u>

substitute

$m=\frac{56,000-32,000}{700-400}$

$m=\$80\ per\ ft^2$

The slope of the Function 2 is greater than the slope of the Function 1

The slope of the Function 2 is two times the slope of the Function 1

Part B) Find and compare the y-intercept

we know that

The y-intercept is the value of y when the value of x is equal to zero

Function 1

$y=40x+15,000$

For x=0

$y=40(0)+15,000=\$15,000$

Function 2

Find the equation in point slope form

$y-y1=m(x-x1)$

we have

$m=80\\point\ (400,32,000)$

substitute

$y-32,000=80(x-400)$

Convert to slope intercept form

isolate the variable y

$y-32,000=80x-32,000\\y=80x$

For x=0

$y=80(0)=0$

The y-intercept of the function 1 is $15,000 and the y-intercept of the function 2 is zero (the line passes through the origin)

Part C) Describe each function as proportional or non proportion

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Function 1

$y=40x+15,000$ -----> is a non proportional linear function (because the line has a y-intercept)

Function 2

$y=80x$ ----> is a proportional linear equation (the line passes through the origin)

7 0

3 years ago

What are the square roots of 484? A. −12 and 12 B. −18 and 18 C. −22 and 22 D. −242 and 242

tatuchka [14]

C -22 and 22
hope it helped

8 0

3 years ago

BRAINIEST PLEASE HELP I SUCK AT MIDDLE SCHOOL MATH PLEASE HELP MEH! (08.03/08.05 MC)

joja [24]

Substitution Method:
y=7x-8 ------(1)
y=5x-2 ------(2)

From (2) y=5x-2 sub into (1)
5x-2=7x-8
5x-7x=-8+2
-2x=-6
x=3 sub into (2)
y=5(3)-2
y=13
--------------------------------------
(x,y) = (3,13)

7 0

3 years ago

Read 2 more answers

I need help is it A B C or D

umka21 [38]

I think its C but im not 100% sure.

8 0

3 years ago

Read 2 more answers