Answer:
A. 10/14
and
C. 15/21
Step-by-step explanation:
A. 10/14
and
C. 15/21
The answer is 1.94, I used a calculator, just letting u know
Assuming you meant 2+3(67x34)=y
67x34=2278
2+3(2278)=y
5(2278) or 5x2278=y
y=11390
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
<h3>
Answer: y = -x - 16</h3>
========================================================
Explanation:
The given equation is the same as y = 1x+5 which is in y = mx+b form.
- m = slope = 1
- b = y intercept = 5
Anything perpendicular to this will have a slope of -1, which is the negative reciprocal of the original slope.
We'll use this perpendicular slope along with (x,y) = (-20,4) to find the equation of the perpendicular line.
y = mx+b
y = -1x+b ... plug in the perpendicular slope
4 = -1*(-20)+b ... plug in the x,y coordinates
4 = 20+b
4-20 = b
-16 = b
b = -16
Therefore, we go from y = mx+b to y = -x-16
