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2 years ago

8

4. A straight line passes through points (3, 12) and (7,4). What is the equation of the line?

2 answers:

jeyben [28]2 years ago

6 0

Answer:

slope is -2 (-8/4)

point slope formula y=y1=m(x-x1) m slope (x1, y1) point

y-4=-2(x-7)

y=-2x+18

Arte-miy333 [17]2 years ago

4 0

Answer:

y=-2x+18

Step-by-step explanation:

Since the y-value is going down, we can assume that the line is going negative. As the midpoint is (5, 8), you should subtract 2 units from 3 and 4 units from 12 to get (1, 16) and therefore to get to (-1, 20), since the y-intercept is 18, the slope is 2, and it is going negative, your final answer is y=-2x+18.

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the ordered pairs (0,-1),(1,0),(2,3),(3,8),(4,15) represent a function what is a rule that represents this function? Please help

yarga [219]

Answer:

The function rule is

$f: x\to \: {x}^{2} - 1$

Step-by-step explanation:

The given ordered pairs are (0,-1), (1,0),(2,3),(3,8),(4,15)

We can observe the following pattern.

$f(0) = {0}^{2} - 1 = - 1$

$f(1) = {1}^{2} - 1 = 0$

$f(2) = {2}^{2} - 1 = 3$

$f(3) = {3}^{2} - 1 = 8$

$f(4) = {4}^{2} - 1 = 15$

When we generalize this pattern, we obtain:

$f(x) = {x}^{2} - 1$

This is the function equation.

The function rule is

$f: x\to \: {x}^{2} - 1$

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3 years ago

PLZ HELP ASAP!! (Algebra)

svp [43]

Answer:

Rational, integers, whole, natural, real

Step-by-step explanation:

109 is rational because it can be expressed as the ratio of two integers: 109:1

109 is integer because it can be written with no fractions

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109 is natural because it is an integer greater than 0

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3 years ago

if you put $1650 into a saving account with a simple interest rate of 2.3%, how much interest would you accrue after 7 years

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You would recieve $37.95 a year then multiply that by 7 years to get $265.65

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3 years ago

At a local high school, the probability that a student has a job and a car is 0.18. Jackson wants to find the probability that a

makvit [3.9K]

<span>D. the probability that a student has a car or job

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4 years ago

Read 2 more answers

How is this supposed to be solved, i don’t really understand.

dezoksy [38]

Answer:

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Step-by-step explanation:

Just add together what they pay every year, then multiply by 25.5% (because that's the quarterly premium.)

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25.5% = .255

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3 years ago