<u>Given</u>:
The graph of 
shows the value of a rare coin in year t.
We need to determine the meaning of the y - intercept.
<u>Meaning of the y - intercept:</u>
Here, t represents the x - axis and f(t) represents the y - axis.
The value of y - intercept is the value of y when x = 0.
Hence, the the value of f(t) can be determined by substituting t = 0 in the function
Thus, we have;
Thus, the value of the y - intercept is 4.
The y - intercept represents the value of the rare coin in year 0.
Therefore, the meaning of the y - intercept is "When it was purchased (year 0), the coin was worth $4".
Hence, Option B is the correct answer.
Answer:
General Formulas and Concepts:
- Order of Operations: BPEMDAS
- Equality Properties
Step-by-step explanation:
<u>Step 1: Define equation</u>
3x + 47y = 1094
<u>Step 2: Solve for </u><em><u>y</u></em>
- Subtract 3x on both sides: 47y = 1094 - 3x
- Divide both sides by 47: y = (1094 - 3x)/47
Step-by-step explanation:
I'm going to assume 50.25 was a typo error and it is $0.25 for each extra minute.
For a 10 minute phone call, the first 5 minutes cost $3 and the other 5 minutes cost $0.25 * 5 = $1.25. Altogether it costs $4.25.
For a 15.5 minute phone call, the first 5 minutes cost $3 and the other 10.5 minutes cost $0.25 * 11 = $2.75. Altogether it costs $5.75.
Answer:
length=30 ft breadth=20 ft
Step-by-step explanation:
let lenght be x then breadth will be 2/3x
now, area=lenght×breadth
=>600 =(x×2/3x)
=>600=2/3x^2
=>x^2=900
=>x=30 (ft)
now length will be 30 ft
breadth will be 30×2/3 (ft) =20(ft) ✌️
Answer:
slope of the line is 50
Step-by-step explanation:
The slope of a line (gradient) is determined by the rise/run so
(y2 - y1) / (x2 - x1)
We simply substitute in our coordinates and solve. So:
(4000 - 3000) / (60 - 40)
= 1000 / 20
= 100/2 = 50
Gradient is 50
