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Mrac [35]
4 years ago
6

Helppp lolwhich system of linear equations is represented by the graph?​

Mathematics
1 answer:
kondaur [170]4 years ago
6 0

Answer:

<em>y ≥ x - 2, and x + 2y < 4 ; Option C</em>

Step-by-step explanation:

Consider the y - intercept and slope of 1 of these given lines,

y - intercept = ( 0, - 2 ) / - 2\\slope = 1 / 1 = 1

From this we can formulate the equation of 1 line;

Take Equation In the Form - y = ax + b, a - slope, and , b - y intercept,\\y = ax + b, a = 1, b = - 2,\\Equation of Line 1 - y = x - 2

Now consider the y - intercept and slope of the remaining line;

y - intercept = ( 0,  2 ) / 2\\slope = 1 /  - 2 = - \frac{ 1 }{ 2 }

This creates a line with the equation as such;

Take Equation In the Form - y = ax + b, a - slope, and , b - y intercept,\\y = ax + b, a = - 1 / 2, b = 2,\\Equation of Line 1 - y = - \frac{ 1 }{ 2 } x + 2, x + 2y = 4

From this we see that the solution of the system is such;

<em>Solution ; y ≥ x - 2, and x + 2y < 4 ; Option C</em>

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Does (3,6) make the inequality 4x+y &gt;19 true
mrs_skeptik [129]
(3,6)
4x + y > 19

4(3) + 6 > 19
12 + 6 > 19
18 > 19

No
6 0
4 years ago
Help me with questions 3 &amp; 4
ASHA 777 [7]

3. -4x - 6

-3(x + 2) - x → ( distribute bracket by - 3)

= - 3x - 6 -x → (collect like terms)

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

4. A has the smallest value

A =( 2 - 3 ) = -1

B = 2 × 3 = 6

C = 2 + 3 = 5

D = \frac{2}{3}

A is negative while the others are all positive.

Thus A is the smallest value expression


6 0
3 years ago
ABCD is a quadrilateral with A(8,21),B(10,27),C(26,26) and D(18,2). Determine whether ABCD is a trapizoid
Svetradugi [14.3K]
<h2>Answer:</h2>

ABCD is a trapezoid

<h2>Step-by-step explanation:</h2>

<em>Given points of the quadrilateral:</em>

A(8,21),B(10,27),C(26,26) and D(18,2)

To show whether ABCD is a trapezoid, we find a pair of parallel sides in ABCD. If two of its sides are parallel to each other then ABCD is a trapezoid.

<em>Step 1:</em> With the given points, sketch a graph. The diagram is attached to this response.

<em>Step 2:</em> As shown in the diagram, the two sides that are likely to be parallel are AB and CD

If these two sides have same gradient/slope, then the quadrilateral is a trapezoid.

Now calculate the slopes of those sides using the slope formula;

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

<em>Calculate the slope of AB </em>(where x₁ = 8, y₁ = 21, x₂ = 10, y₂ = 27)

m(AB) = \frac{27-21}{10-8}

m(AB) = \frac{6}{2}

m(AB) = 3

<em>Calculate the slope of CD </em>(where x₁ = 26, y₁ = 26, x₂ = 18, y₂ = 2)

m(CD) = \frac{2-26}{18-26}

m(CD) = \frac{-24}{-8}

m(CD) = 3

Since the two slopes - m(AB) and m(CD) slopes are equal to 3, the quadrilateral ABCD is a trapezoid.

5 0
3 years ago
If Karen finished watching a movie at 1:10 pm, and it lasted 1 hour 38 minutes, then what time did she start the movie
expeople1 [14]

Answer:

11.32pm

Step-by-step explanation:

1.10pm - 1hr = 12.10pm

12.10pm - 38min = 11.32pm

6 0
3 years ago
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A map of California has a scale factor of 1 inch = 16 miles. The distance on the map from Riverside to Chula Vista is 3.5 inches
kvasek [131]

Answer:

56 miles

Step-by-step explanation:

7 0
3 years ago
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