1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stich3 [128]
2 years ago
7

A graph has a constant of proportionality of 7.2. Let y represent minutes and x represent miles.

Mathematics
1 answer:
vodka [1.7K]2 years ago
4 0

Answer:

  7.2 minutes per mile

Step-by-step explanation:

If we assume the description means y = 7.2x, the rate 7.2 means each increase in x of 1 mile results in an increase in y of 7.2 minutes. That is the rate is 7.2 minutes per mile.

You might be interested in
Need help with this​
Vanyuwa [196]

Answer:

Slope-int form: y = 3x+5

Standard form: y - 3x = 5.

Step-by-step explanation:

(reminder: slope-intercept form is expressed as y=mx+b, and standard form is expressed as ax+bx=c.)

Since the slope is 3, the coefficient of x is also 3, which makes the equation y=3x.

But the y coordinate of the equation at x = -2 is -6, so we need to add 5 to the end of the equation, leaving you with:

y=3x+5.

To convert it to standard form, subtract 3x from both sides:

y - 3x = 5.

I hope this helped you.

4 0
3 years ago
What is the equation of the quadratic graph with a focus of (4, −3) and a directrix of y = −6?
Artyom0805 [142]

Answer:

y=\frac{1}{6} (x-4)-\frac{9}{2}

Step-by-step explanation:

∵ The quadratic equation form is :

y = [1/2(b - k)] (x - a)² + (b + k)/2

Where (a , b) is the focus and directrix y = k

∵ The focus is (4 , -3) and directix is y = -6

∵ y=\frac{1}{2(-3-(-6))} (x-4)^{2}+\frac{(-3)+(-6)}{2}

∴ y=\frac{1}{6} (x - 4)^{2}+\frac{-9}{2}

∴ y=\frac{1}{6} (x-4)-\frac{9}{2}

another way:

Assume that (x , y) is the general point on the parabola

∵ The distance between the directrix and (x , y) = the distance between the focus and (x , y)

By using the distance rule:

∵ (y - -6)² = (x - 4)² + (y - -3)² ⇒ (y + 6)² = (x - 4)² + (y + 3)

∴ y² + 12y + 36 = (x - 4)² + y² + 6y + 9

∴ 12y - 6y = (x - 4)² + 9 - 36

∴ 6y = (x - 4)² - 27 ⇒ ÷ 6

∴ y = 1/6 (x - 4)² - 9/2

4 0
3 years ago
find a parametric representation of the solution set of the linear equation. (enter your answer as a comma-separated list of equ
Ostrovityanka [42]

To represent the solution set of a linear equation parametrically, we introduce other parameters like s and t for the free variables.

Every linear equation has n - 1 free variables where n is the number of variables.

For x + y + z = 2, we have 3 variables and 3 - 1 = 2 free variables.

First, let y and z be the free variables, we first solve the linear equation for x to get:

x = 2 - y - z

Therefore , the parametric representation of the solution set is given by :

x = 2 - s -t

y = s

z = t

Learn more about The linear Equation at:

brainly.com/question/17748588

#SPJ4

5 0
1 year ago
Without multiplying determine whether the product of 5 x 4/5 is located on the number line at point A,B or C
WARRIOR [948]
I the answer is 20/5 but you have to put it in abc
4 0
3 years ago
Slope and equation, how much battery does she lose an hour
insens350 [35]
Equation: y=-5x+100, where x is the number of hours and y is the battery percentage
The slope is -5, meaning she loses 5% of battery per hour
:)
8 0
2 years ago
Read 2 more answers
Other questions:
  • I need to know theater answer
    7·1 answer
  • A model car has a scale factor of 1/64. The diameter of a tire on the model is 0.39. So, the diameter of the tire on an actual c
    6·1 answer
  • Given f(c)=2x^2-3x and g(x)=4x+1<br> Evaluate (g•f)(x)
    10·1 answer
  • Find the 4th term in the binomial expansion
    14·1 answer
  • Help me find the answer
    5·1 answer
  • If a normal distribution has a mean of 132 and a standard devistion of 20, what is the value that has a z score of 3.6
    7·1 answer
  • Find the length of the mid segment.
    7·1 answer
  • The scale of the floor plan of a room is 1 cm : 6.5 m. On the floor plan, the room is 3 cm long by 2 cm wide. What are the actua
    6·1 answer
  • FREE BRAINLIEST GET NOW OR LOSE OPPURTUNITY
    12·2 answers
  • List the sides of the triangle in order from longest to shortest.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!