Answer:
y = -1000x +11000
Step-by-step explanation:
<u>Given:</u>
(x, y) = (sales price, number sold) = (3, 8000), (6, 5000)
<u>Find</u>:
slope-intercept equation for a line through these points
<u>Solution</u>:
When given two points, it often works well to start with the 2-point form of the equation for a line.
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
Filling in the given points, you have ...
y = (5000 -8000)/(6 -3)/(x -3) +8000
y = (-3000/3)(x -3) +8000
y = -1000x +3000 +8000 . . . . eliminate parentheses
y = -1000x +11000 . . . . the desired equation
Answer:-2.125
Step-by-step explanation:
1. simplify the function
-2(x+3)2-5
(-2x-6)2-5
(-4x-12)-5
-4x-17
2. formula for axis of symmetry: -b/2a
a=-4 b=-17
-(-17)/2(-4)=17/-8=-2.125
The number is 'n'.
Five times the number is 5n .
Nine more than that is 5n + 9 .
Okay. The pattern here is subtracting 5, because -22 - 5 = -27. -7 - 5 = -12 And -12 - 5 = -17. -12 and -17 go in the term of the sequence, because all of the numbers together have a difference of 5. The answer is D.
