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Tems11 [23]
3 years ago
11

Which is the graph of the solution set of −2x + 5y > 15? Image for option 1 Image for option 2 Image for option 3

Mathematics
2 answers:
Masteriza [31]3 years ago
8 0
To make that graph you follow these steps.
1) Set the cartesian coordinate system:
- vertical axis: y
- horizontal axis: x
- positive x-semi axis: to the right
- negative x-semi axis: to the left
- positive y-semi axis: upward
- negative y semi axis: dwonward

2) solve the inequality for y:
given:                       -2x + 5y > 15
transpose-2x:            5y > 15 + 2x
divide by 5:                  y > 3 +  (2/5)x

3) Graph

- draw the line y = 3 + (2/5)x, using a dotted line (i.e. - - - - - -)
- remember that 3 is the y intercept, and 2/5 is the slope
- the line is dotted because the solution does not include the points in the line.

- the solution is the region above and to the left of the dotted line.

4) See the figure attached for better visualization: the pink region is the solution of the inequality.

Rom4ik [11]3 years ago
5 0

Answer:

the first graph is correct

Step-by-step explanation:

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3 years ago
What is the solution of this equation x + 6 =24
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3 years ago
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the sum of three numbers is 55. the second number is twice the first and the third number is five less than the second. What are
ArbitrLikvidat [17]

Let the first number be = x

Then the second number = 2x

The third number = 2x - 5

Their sum = 55

This can be written in an equation as =

x + 2x + 2x - 5 = 55

= x + 2x + 2x = 55 + 5 ( transposing -5 from LHS to RHS changes -5 to +5 )

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= x = 60 ÷ 5 ( transposing ×5 from LHS to RHS changes ×5 to ÷5 )

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Step-by-step explanation:

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Which becomes, 13+2=15--> 15/23

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Answer:

Axis of symmetry

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Step-by-step explanation:

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3 years ago
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