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
sveticcg [70]
3 years ago
12

20. If a certain linear function f(x) is evaluated at 0, the answer is 4.

Mathematics
1 answer:
bija089 [108]3 years ago
7 0

Answer:

y = (1/3)x + 4

Step-by-step explanation:

Two points on this line are (0, 4) and (3, 5).

As we move from the first point to the second, x increases by 3 and y increases by 1.  Thus, the slope, m, of the line is m = rise / run = 1/3.

Use the slope-intercept equation:  y = mx + b.

If we use the data from the point (0, 4), we get:

4 = (1/3)(0) + b, so that b = 4.  The desired equation is y = (1/3)x + 4.

You might be interested in
Select the statement that best justifies the conclusion based on the given information.
artcher [175]
Hope this helps but I think it is A.)addition property of equality.
6 0
3 years ago
Read 2 more answers
A red car is driving along the road in the direction of the police car and is 130 feet up the road from the location of the poli
pishuonlain [190]

Complete question:

A police car is located 50 feet to the side of a straight road. A red car is driving along the road in the direction of the police car and is 130 feet up the road from the location of the police car. The police radar reads that the distance between the police car and the red car is decreasing at a rate of 75 feet per second. How fast is the red car actually traveling along the road.

Answer:

The red car is traveling along the road at 80.356 ft/s

Step-by-step explanation:

Given

Police car is 50 feet side off the road

Red car is 130 feet up the road

Distance between them is decreasing at the rate of 75 feet per sec

Let x be how far the police is off the road.

Let y be how far the red car is up the road.  

Let h be the distance between the police and the red car.

This forms a right triangle so we can use the Pythagorean theorem, to solve for h

h² = x² + y²

h² = 50² + 130²

h² = 19400

h = √19400

h = 139.284 ft

Again;

Let dx/dt be how fast the police is traveling toward the road.

Let dy/dt  be how fast the red car is traveling along the road.

Let dh/dt be how fast the distance between the police and the car is decreasing.

Recall that, h² = x² + y² (now differentiate with respect to time, t)

2h(dh/dt) = 2x(dx/dt) + 2y(dy/dt)

divide through by 2

h(dh/dt) = x(dx/dt) + y(dy/dt)

since the police car is not, dx/dt = 0

and dy/dt is the how fast is the red car actually traveling along the road

139.284(75) = 50(0) + 130(dy/dt)

10446.3 = 0 + 130(dy/dt)

dy/dt = 10446.3 / 130

dy/dt = 80.356 ft/s

Therefore, the red car is traveling along the road at 80.356 ft/s

6 0
3 years ago
Ethan can blow 15 balloons in 20 minutes Junwei can blow 18 balloons in 25 minutes and vishal can blow 16 balloons in 21 minutes
monitta

Answer:

ethan blows fastest

Step-by-step explanation:

5 0
3 years ago
The diagram shows WXY. which term describes point Z
larisa86 [58]
The answer is d because the centroid stems from medians in a triangle
7 0
3 years ago
Read 2 more answers
17. Find the measures of the length and width of
777dan777 [17]

Answer:

can you click a full photo of this question.

7 0
2 years ago
Other questions:
  • Craig has 36 ounces of flour left in one bag and 64 ounces of flour in another bag. Use the Baking Flour Equivalent table to fin
    12·1 answer
  • Does this set of ordered pairs represent a function? Why or why not?
    10·1 answer
  • (05.06)A chocolate bar measures 40 mm wide, 80 mm long, and 5 and 1 over 2 mm high. Will’s Wrapping Company is making a wrapper
    12·1 answer
  • Is 35% more than 2/5
    12·2 answers
  • What is 8 percent of 10,000of 1 year
    11·1 answer
  • What is 959.4 divided by 6​
    5·1 answer
  • Q22.
    10·1 answer
  • Identify the Domain of each graph or table.
    11·1 answer
  • CAN ANYONE HELP ME WITH THIS QUICKKKKK!
    6·1 answer
  • Find the volume of the Firgure
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!