Answer:
1/25
Step-by-step explanation:
f(x) = 5^x
f(-2) = 5^-2
We know that a^-b = 1/a^b
= 1/5^2
= 1/25
Answer:
lets say "w" is weeks
400 - 20w
Step-by-step explanation:
u have 400, and u take out 20 per week
x intercept is -5
Explanation
Step 1
find the slope of the line:
when you know 2 points of the line, you can find the slope, by using:

then,Let
P1(33,-22)
P2(52,-33)
replace,

Step 2
find the equation of the line

let

replace,

now, we have the equation of the line, to get the x intercetp ( it is when y=0)
replace

so, the x intercetp is -5.
I hope this helps you
First find the slope. m=(y2-y1)/(x2-x1)
m=(4225-1990)/(5-2)=745,
m is the slope, this represents the amount of money earned each month that the business operates.
so far we have:
y=745x+b, using any point we can solve for b, I'll use (2,1990)
1990=745(2)+b
1990=1490+b
500=b
b is the y-intercept which is $500, it represents the amount of moeny that the business started with.