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attashe74 [19]
3 years ago
15

Which equation represents the graphed function?

Mathematics
2 answers:
scoundrel [369]3 years ago
7 0

Solution:

we have been asked to find

Which equation represents the graphed function?

As we can see in the graph, the line is passing through the point (2,0) and (0,-3).

As we know the equation of the passing through two points is given by the formula

(y-y_1)=m(x-x_1)\\
\\
m=slope=\frac{y_2-y_1}{x_2-x_1}=\frac{-3-0}{0-2}=\frac{3}{2}  \\

So the equation of the line will be

y-0=\frac{3}{2}(x-2)\\
\\
y= \frac{3}{2}x-3\\
\\

lisabon 2012 [21]3 years ago
5 0

The equation which represents the graphed function is \fbox{\begin\\\ \math y=\dfrac{3x}{2}-3\\\end{minispace}}.

Further explanation:

From the given graph of a function it is observed that the curve intersects the x-axis at one point and intersects the y-axis at one point.

This implies that there is one x-intercept and one y-intercept.

x-intercept is defined as a point where the curve intersects the x-axis.

y-intercept is defined as a point where the curve intersects the y-axis.

From the given graph it is observed that the point where the curve intersects the x-axis is (2,0) and the point where the curve intersects the y-axis is (0,-3).

Therefore, the line passes through the points (2,0) and (0,-3).

Slope of a curve is defined as the change in the value of y with respect to change in value of x.

The slope of the line is calculated as follows:

\fbox{\begin\\\ \math m=\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\end{minispace}}

The point (x_{1},y_{1}) and (x_{2},y_{2}) for the given line are (2,0) and (0,-3).

The value of slope of the given line is calculated as follows:

\begin{aligned}m&=\dfrac{-3-0}{0-2}\\&=\dfrac{-3}{-2}\\&=\dfrac{3}{2}\end{aligned}

Therefore, the slope of the line is \fbox{\begin\\\ \math m=\dfrac{3}{2}\\\end{minispace}}.

The slope intercept form of a line is as follows:

\fbox{\begin\\\ \math y=mx+c\\\end{minispace}}      (1)

In the above equation m represents the slope and c represents the y-intercept.

From the graph it is observed that the value of c is -3.

To obtain the equation of the line substitute -3 for c and \dfrac{3}{2} for m in equation (1).

y=\dfrac{3}{2}x-3

Therefore, the equation which represents the line in the given graph is \fbox{\begin\\\ \math y=\dfrac{3}{2}x-3\\\end{minispace}}.

Learn more:

1. A problem to complete the square of quadratic function brainly.com/question/12992613  

2. A problem to determine the slope intercept form of a line brainly.com/question/1473992

3. Inverse function brainly.com/question/1632445  

Answer details

Grade: High school

Subject: Mathematics  

Chapter: Linear equation

Keywords: Equation, linear equation, slope, intercept, x-intercept, y-intercept, intersect, graph, curve, slope intercept form, line, y=3x/2-3, (2,0), (0,-3), point slope form.

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