First find the slope of the line.
m=slope=(y2-y1)/(x2-x1), in this case:
m=(-1-7)/(9--3)
m=-8/12
m=-2/3
You did not specify which form of the line you wanted.
Slope-intercept form is y=mx+b
y=-2x/3+b, using pint (9,-1) we can solve for b, the y-intercept...
-1=-2(9)/3+b
-1=-6+b
5=b then we have:
y=-2x/3+5 or more neatly
y=(-2x+15)/3
Point-slope form of a line is:
y-y1=m(x-x1), again using (9,-1) as the point and m=-2/3 you get:
y+1=(-2/3)(x-9)
Standard form of a line is ax+by+c:
We can rearrange y=(-2x+15)/3 to standard form
y=(-2x+15)/3 multiply both sides by 3
3y=-2x+15 add 2x to both sides
2x+3y=15
Answer: 1
Step-by-step explanation: A zero is where the line crosses the x-axis
What do you want us do to with just one thing is it a picture but I guess 8.2
We sample because we want to get an overview of the population. It's usually impractical to study the entire population.
For example, say you want to know what percent of people who go to a certain grocery store have a dog. It wouldn't make sense to sample every single person who goes to that grocery store; there's just too many people. But if you took a sample of say, 100 people, and asked them if they had a dog, you could get a rough estimate of all the people.
Well a cellphone tower has angles and it has a distance so it is possible to use trigonometry to determine its height. tools to be used are maybe a calculator, measuring tape, paper, and a pencil or pen<span />
