Answer:
c
Step-by-step explanation:
The general form for a line through two points (a,b) and (c,d) is
(c-a)(y-b)=(d-b)(x-a)
This is better than the slope forms because it works in the no slope case, as does the standard form.
If you haven't seen it before, it works because when (x,y)=(a,b) we get (c-a)(b-b)=(d-b)(a-a), both sides zero, and when (x,y)=(c,d) we get (c-a)(d-b)=(d-b)(c-a), clearly equal sides.
Here we have
(0 - -5)(y - 0) = (-9 - 0)(x - - 5)
5y = -9(x+5)
5y = -9x - 45
9x + 5y = -45
Ironically there are two standards for standard form; one with the constant alone on the right and one with the whole thing equal to zero. I like the constant alone.
Answer: 9x + 5y = -45
Check:
We check each point is on the line
(-5,0)
9(-5) + 5(0) = -45, good
(0, -9)
9(0) + 5(-9) = -45, good again
Answer:
Step-by-step explanation:
Given that a study of 250 households in Cedar Bluff showed that a household produced an average of 4 pounds of garbage per day.
Here a study of only 250 were made to assess about the entire households in Cedar Bluff
Hence the population of interest in this study is the entire households in Cedar Bluff.
The sample is the 250 households in Cedar Bluff which were studied
The objective was to study the sample and from that information to assess about the population.
Answer:
x = 5/8
Step-by-step explanation:
24a = 15
Divide both sides by 24:
24a ÷ 24 = 15 ÷ 24
x = 5/8
The population 150 students
The sample is 54% of students
I’m not sure but I hope this helps!
