Answer:
Step-by-step explanation:
Maybe the big numbers make it confusing, so let's look at something simpler. If you start with 5 marbles and every day you add one marble to it how many will you have x days after startign the collection? Well on day 0 it's 5, on day 1 it's 6, because 5+1, on day 2 it's 5+2=7, and so on. You can write this as an equation, y = 5+x, where y is the new total and x is the number of days.
So let's move that thinking to this problem. 1990 is day 0 and you start with 3,500,000. Each year now instead of day you add 38,500. So year 0 has 3,500,000. year 1 has 3,500,000+38,500 = 3,538,500 and so on, where each year we add another 38,500. So just like in the simpler example we can rewrite this. y = 3,500,000 + 38,500x. Linear means that the x is just an x instead of something like x^2, or 1/x or something else. Just normal x.
Hello!
I see a pattern.
The pattern rule is: Add 0.045
2.155 + 0.045 = 2.200
2.200 + 0.045 = 2.245
2.245 + 0.045 = 2.290 and so on.
Answer:
Step-by-step explanation:
x = -3, f(x) = 17
x = 5, f(x) = 63
x = 0, f(x) = -2
x = 2, f(x) = 18
x = 7, f(x) = 103
Answer: The answer is 3/8
Step-by-step explanation: For this problem you only need to multiply the fractions. So when you multiply the two fractions you first multiply both numerators so 1 X 3 = 3 then the denominators 4 X 2 = 8. So the fraction is 3 over 8 3/8.
Hope this helps.
Answer:
y = -3x + 8
Step-by-step explanation:
This looks like it's in slope-intercept form.
So, they want you to write it like y=mx+b, where m is the slope and b is the y-intercept.
First, find the slope.
The slope is calculated by using:
You have several points. Let's use (1,5) and (2,2)
= 2
= 5
= 2
= 1
= = -3
The slope (m) is -3.
y = -3x + b
Now, find the y-intercept.
Substitute points in for y and x.
Let's use (1,5) (x,y)
x= 1
y=5
5= -3(1) +b
5 = -3 + b
b = 8
Add b to your equation.
y = -3x + 8