Let's call x the number of months you have a membership, and y the total cost of the membership.
We want to express the total cost function in slope-intercept form:
y = mx + b
What is b, the y intercept? It is the cost you pay aside from your monthly fee. This is the initital membership fee of 20 dollars.
What is m, the slope? This is the amount that the total cost increases by in each month, or the monthly. The slope, therefore, is 15 dollars.
y = 15x + 20
How much will it cost for a year's membership? We know that there are 12 months in a year, so let's plug in 12 for x and solve for y:
y = 15 (12) + 20
y = 180 + 20
y = 200
One year's membership costs 200 dollars.
Graphing the equation:
One easy way to graph a linear function, draw a straight line between the x-intercept and the y-intercept that continues in both directions.
The y-intercept, as we know, is 20, so that is your first point.
To find the x-intercept:
0 = 15(x) + 20
15x = -20
x = -20/15 = -4/3
Therefore, drawing a straight line that goes through the points (-4/3, 0) and
(0, 20) will provide a graph of the equation.
You would have to work 24 hours each week to be able to still buy the car.
Answer:
240/(v+40) + 1 > 240/v
Step-by-step explanation:
Both parties traveled a distance of 240 km.
Simpsons took off at average speed of 40 km/h & 1 hour later: 240/(v+40) + 1
Jacksons took off at average speed of v km/h: 240/v
C(3,-11)
(I have to use up extra room or else it won’t submit)
Hello Chrisd117991999.
If the missile was going 900mph and we are trying to find the horizontal velocity
This could be 3.88, and rounding it to the nearest hundredth would be <u><em>3.90 miles per minute</em></u>
:)
