Slope formula : (y2 - y1) / (x2 - x1)
now pick 2 points on ur line...
(1,2)......x1 = 1 and y1 = 2
(3,0)......x2 = 3 and y2 = 0
now sub
slope = (0 - 2) / (3 - 1) = -2/2 = -1 <== ur slope is -1
Answer:
16 years approx
Step-by-step explanation:
Given data
P=$3000
r= 6%
A= $7700
t= ??
The compound interest formula is
A= P(1+r)^t
Calculate time, solve for t
t = ln(A/P) / r
substitute
t= ln(7700/3000)/0.06
t= ln(2.566)/0.06
t= 0.942/0.06
t= 15.7
The time is 16 years approx
-2010 : (-30) = -201 : (-3) = 67
Okay, I know this looks intimidating but don't worry, it isn't that hard! All you need to do is take any two points on the line, we'll do (-3, 0) and (0,6), choose one to be x1 and y1, and then the other to be x2 and y2, it doesn't matter which one you decide to choose. We'll use (-3,0) as x1 and y1 then (0,6) as x2 and y2, now just use the formula, which is y2 - y1 / x2 - x1, to use this take y2(6) and y1(0) and subtract 6 - 0, which equals six. Then we'll use x2(0) - x1(-3) which equals 3, so now, you take y2 - y1 /x2 - x1 and turn it into 6/3, and you get two, hope this helped you!
Answer:
4 9/10
Step-by-step explanation:
3 1/2 ---- 3 5/10
7/5 ------ 14/10
3 5/10 + 14/10 = 3 19/10 ---- 4 9/10
