Find an expression for the function whose graph is the given curve. The line seg

OlmekinjP

OlmekinjP

Answered question

2021-09-16

Find an expression for the function whose graph is the given curve. The line segment joining the points (5,10) and (7,10)

Answer & Explanation

cheekabooy

cheekabooy

Skilled2021-09-17Added 83 answers

Equation of the line passing through (x1,y1) and (x2,y2) is
yy1xx1=y2y1x2x1
Equation of the line passing through (5,10) and (7,10) is
y10x(5)=10107(5)
y10x+5=2012
y5x+5=53
Multiply both sides by x+5
y10=53x253
Add 10 to both sides
y10+10=53x253+303
y=53x+53
Note that is this equation of the line, to get the equation of the line segment include the limits on x
y=53x+53

alenahelenash

alenahelenash

Expert2023-05-26Added 556 answers

To find an expression for the function whose graph is the line segment joining the points (-5,10) and (7,10), we can start by noting that the function is a horizontal line since the y-coordinates of both points are the same (10).
Let's denote the function as f(x). Since the line is horizontal, the value of f(x) is constant for all values of x. In this case, f(x)=10 for any x within the interval [-5, 7].
Therefore, the expression for the function can be written as:
f(x)=10
star233

star233

Skilled2023-05-26Added 403 answers

Step 1:
The slope of a line passing through two points (x₁, y₁) and (x₂, y₂) is given by the formula:
m=yyxx
Using the coordinates of the given points (-5, 10) and (7, 10), we can calculate the slope:
m=10107(5)=012=0
Step 2:
Since the slope is 0, we know that the line is a horizontal line. A horizontal line has the same y-coordinate for all points along its length.
Therefore, the equation of the line can be written as:
y=c
where c is a constant representing the y-coordinate of any point on the line.
In this case, since the y-coordinate is always 10, we can rewrite the equation as:
y=10
Thus, the expression for the function whose graph is the given line segment is y=10.
karton

karton

Expert2023-05-26Added 613 answers

Result:
y=10
Solution:
We'll use the point-slope form of the equation of a line, which is given by:
yy1=m(xx1)
where (x1,y1) are the coordinates of one point on the line, and m is the slope of the line.
First, let's calculate the slope of the line using the formula:
m=y2y1x2x1
In this case, (x1,y1)=(5,10) and (x2,y2)=(7,10). Substituting these values into the slope formula, we get:
m=10107(5)=012=0
Since the slope of the line is zero, the line is horizontal. We know that any horizontal line can be expressed as y=c, where c is a constant. In this case, the constant value is 10, as it represents the y-coordinate of the line.
Therefore, the expression for the function whose graph is the line segment joining the points (-5, 10) and (7, 10) can be written as:
y=10
The graph of this function is a horizontal line at the y-coordinate 10, as desired.

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