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IceJOKER [234]
3 years ago
6

Write an equation of the line that passes through the given points (1 , 1.5) and (2, 3.5)

Mathematics
1 answer:
Nitella [24]3 years ago
5 0

Answer:

y=2x-0.5

Step-by-step explanation:

typically, the equation of the line is written in slope intercept form, which is y=mx+b, where m is the slope and b is the y intercept

first, we need to find the slope (m) of the line

the formula for slope calculated from two points is given as (y2-y1)/(x2-x1)

we have two points: (1,1.5) and (2,3.5) and we can label them

x1=1

y1=1.5

x2=2

y2=3.5

now plug into the formula:

m=(3.5-1.5)/(2-1)

m=2/1

m=2

the slope of the line is 2

here's our equation so far:

y=2x+b

now we need to find b

since the line will pass through the points (1, 1.5) and (2, 3.5), we can plug either one of them into the equation to solve for

Let's use (1, 1.5)

substitute 1.5 as y and 1 as x

1.5=2(1)+b

1.5=2+b

subtract 2 from both sides

-0.5=b

therefore, our equation is:

y=2x-0.5

hope this helps!

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Writing Polynomial Functions
vitfil [10]

Answer:

Step-by-step explanation:

If the zero occur when x={5, -2, -1} then the equation must be

(x-5)(x+2)(x+1) if expansion is desired

(x^2-3x-10)(x+1)

x^3+x^2-3x^2-3x-10x-10

x^3-2x^2-13x-10

4 0
3 years ago
What is the equation, in standard form, of the line passing through the points (3,-4) and (5,1)
OleMash [197]
Slope = (1 + 4)/(5 - 3) = 5/2

y = mx + b
1 = 5/2(5) + b
1 = 25/2 + b
b = 1 - 25/2
b = -23/2

equation
y = 5/2x - 23/2

standard form
5/2x - y = 23/2
or
5x - 2y = 23

hope it helps
3 0
3 years ago
Help please, and may you explain it to me?
prisoha [69]

Answer:

x=0

Step-by-step explanation:

To solve, we need to get the variable, x by itself.

Begin by moving all the numbers to one side of the equation. Perform the opposite of what is being done to the equation.

12=-4(-6x-3)

First, divide both sides by -4, since -4 is being multiplied by -6x-3

12/-4=-4(-6x-3)/-4

-3=(-6x-3)

Add 3 to both sides, since 3 is being subtract from -6x

-3+3=-6x-3+3

0=-6x

Now all the numbers are on one side. x is still not by itself; it is being multiplied by -6. To undo this divide both sides by -6.

0/-6=-6x/-6

0=x

5 0
3 years ago
. A man travels 13km by bus , 8km by car and y km by train . If the man has to travel a total of 30 km , find y. *
erma4kov [3.2K]

Answer:

9km

Step-by-step explanation:

30-(13+8)=9km

I hope you understand

6 0
3 years ago
Which is the correct coefficient matrix for this system? 3x - 4y = 12 x + 6y = 10
Stels [109]

The coefficients of x and y in the first equation are 3 and -4, respectively.

The coefficients of x and y in the second equation are 1 and 6, respectively.

The coefficient matrix lists these coefficients in order on successive rows, so it will be ...

\left[\begin{array}{cc}3&-4\\1&6\end{array}\right]

7 0
3 years ago
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