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hram777 [196]
3 years ago
5

Which linear inequality is represented by the graph?

Mathematics
2 answers:
alexandr402 [8]3 years ago
6 0

The lines represent the inequalities \boxed{y\leqslant\frac{1}{2}x + 3}.

Further explanation:

The linear equation with slope m and intercept c is given as follows.

\boxed{y = mx + c}

The formula for slope of line with points \left( {{x_1},{y_1}}\right) and \left( {{x_2},{y_2}}\right) can be expressed as,

\boxed{m=\frac{{{y_2} - {y_1}}}{{{x_2} - {x_1}}}}

Given:

The inequalities are as follows.

a. y \leqslant 2x + 4.

b.y \leqslant x + 3.

c.y \geqslant x + 3.

d. y \geqslant 2x + 3.

Explanation:

The blue line intersects y-axis at \left( {0,3} \right), therefore the y-intercept is 3.

The blue line intersect the points that are \left({-2,2}\right) and \left({0,2}\right).

The slope of the line can be obtained as follows.

\begin{aligned}m&= \frac{{2 - 3}}{{ - 2 - 0}}\\&=\frac{{ - 1}}{{ - 2}}\\&=\frac{1}{2}\\\end{aligned}

The slope of the line is m = \dfrac{1}{2}

Now check whether the inequality included origin or not.

Substitute \left( {0,0}\right) in equationy \leqslant\dfrac{1}{2}x + 3.

\begin{aligned}0\leqslant\frac{1}{2}\left(0\right)+3\hfill\\0\leqslant3\hfill \\\end{aligned}

0 is less than 3 which means that the inequality does include origin.

Therefore, the blue line is \boxed{y\leqslant\frac{1}{2}x + 3}

Learn more:

1. Learn more about inverse of the functionhttps://brainly.com/question/1632445.

2. Learn more about equation of circle brainly.com/question/1506955.

3. Learn more about range and domain of the function brainly.com/question/3412497

Answer details:

Grade: High School

Subject: Mathematics

Chapter: Linear inequalities

Keywords: numbers, slope, slope intercept, inequality, equation, linear inequality, shaded region, y-intercept, graph, representation, origin.

laiz [17]3 years ago
5 0
<h2>Answer</h2>

y\leq \frac{1}{2} x+3

<h2>Explanation </h2>

First we are going to find the equation of the solid line passing trough the points (0, 3) and (2, 4).

Using the slope formula:

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

m=\frac{4-3}{2-0}

m=\frac{1}{2}

Now we can use the point slope formula to complete the line equation:

y-y_{1}=m(x-x_{1})

y-3=\frac{1}{2} (x-0)

y-3=\frac{1}{2}x

y=\frac{1}{2}x+3

Since the shaded region is bellow the line y=\frac{1}{2}x+3, the inequality represented in the graph is y\leq \frac{1}{2} x+3.

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Nimfa-mama [501]
Well first we need to change the format of the equations to slope-intercept, or y=mx+b.
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In every single graph the first equation (y < -x + 1) is graphed correctly.
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The first equation shows us that y is less than -x +1, making the shading go under the dotted line. (to the left)
The second equation shows us that y is greater than or equal to x/2 - 2, making the shading go above the line. (also to the left)
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