What is the equation of the line passing through the points (2, -1) and (5.-10) in slope-intercept form
1 answer:
Answer:
y = -3x + 5
Step-by-step explanation:
Usually by drawing a simple graph, you can tell what the equation is, even if the graph isn't 100% accurate. From the points alone, you can tell that the slope is negative, since as you increase in x you decrease in y (which is a negative relationship). You can tell that it's +5 rather than -5 because the graph sketched shows that the line goes above 0 (indicating a positive number), rather than below (a negative number).
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Answer:
Step-by-step explanation:
The result of the expression in exponential form is 9^-4
<h3>Product of exponents</h3>Given the expression below
According the product law, since the base are equal, we will add the exponent to have:
Hence the result of the expression in exponential form is 9^-4
Learn more on exponents here; brainly.com/question/11975096
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21 chaperones are needed for 420 students.
Step-by-step explanation:
No. of juniors = 148
No. of seniors = 272
Total = 148+272 = 420 students
3 chaperones = 60 students
1 chaperone =
Ratio of chaperon to students = 1:20
Let,
x be the number of chaperons for 420 students.
Ration of chaperones to students = x:420
Using proportion
Ratio of chaperones to students :: Ratio of chaperons to students
Product of mean = Product of extreme
Dividing both sides by 20
21 chaperones are needed for 420 students.
Keywords: ratio, proportion
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