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barxatty [35]
4 years ago
15

PLEASE HELP, WILL MARK BRAINLIEST - Jessie graphed one of the lines in a system of equations: y=3x-2. If the system has an infin

ite number of solutions, which statements are true? CHECK ALL THAT APPLY (Not just one answer)
☐ Any point in the coordinate plane is a solution because it has an infinite number of solutions.

☐ Point (1, 1) is a solution because it is one of the points on the line already graphed.

☐ It is impossible to tell if (–1,–5) is a solution without seeing the other line graphed.

☐ Point (20, 58) is a solution because it results in a true statement when the point values are substituted into the equation of the line.

☐ When the other line in the system is graphed, it will share all points with the line already graphed.

Mathematics
2 answers:
Klio2033 [76]4 years ago
8 0

Answer:

The correct options are 2, 4, 5.

Step-by-step explanation:

It is given that the system of equations has an infinite number of solutions. It is  possible when both equations represents the same line.

One of the lines in a system of equations:

y=3x-2

It means another line has same equation.

All the points lie on the line are the solution of the system of equations. So, option 1 is incorrect.

From the given graph it is clear that the point (1,1) lies on the line already graphed. So, the point (1, 1) is a solution and option 2 is correct.

Put x=-1 in the given equation.

y=3(-1)-2=-5

The point (-1,-5) is a solution. So, option 3 is incorrect.

Put x=20 in the given equation.

y=3(20)-2=58

The point (20,-58) is a solution. So, option 4 is correct.

Since both lines has same equation, therefore when the other line in the system is graphed, it will share all points with the line already graphed.  Option 5 is correct.

Novosadov [1.4K]4 years ago
4 0
B, D, and E are all correct. The line is coinciding.
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Answer:

1. X=27

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1. \:  \:  \frac{2x}{3}  = 18 \\  \:  \: or \: 2x = 18 \times 3(cross \: multiplication) \\  \:  \: or \: 2x = 54 \\  \:  \:  \: or \: x =  \frac{54}{2}  \\  \:  \:  \: x = 27

2. \:  \: 1.6 =  \frac{x}{1.5}  \\  \:  \: or \: x = 1.6  \times 1.5( \: cross \: multiplication) \\  \:  \:  \:  \: x = 2.4

3. \:  \: 14y - 8 = 13 \\  \:  \:  \: or \: 14y = 13 + 8 \\  \:  \: or \: 14 \: y = 21 \\  \:  \: or \: 14 \times y = 21 \\  \:  \:  \: or \: y =  \frac{21}{14}  \\  \: divide \: 21 \: and \: 14 \: by \: 7 \: you \: will \: get \\  \:or \:  y =  \frac{3}{2}  \\ y = 1.5

4. \:  \: 17 + 6p = 9 \\  \:  \: or \: 6p = 9 - 17 \\  \:  \: or \: 6p =  - 8 \\  \:  \: or \: p =  \frac{ - 8}{6}  \\  \:  \: or \: p =  \frac{ - 4}{3}  \\  \:  \: p =  - 1.33 \\

5. \:  \:  \frac{x}{3}  + 1 =  \frac{7}{15}  \\  \: or \:  \frac{x + 1 \times 3}{3}  =  \frac{7}{15}  \\  \:  \: or \:  \frac{x + 3}{3}  =  \frac{7}{15}  \\  \: or \: 15(x + 3) = 7 \times 3( \: cross \: multiplication) \\  \:  \: or \: 15x + 45 = 21 \\  \:  \: or \: 15x = 21 - 45 \\  \:  \: or \: 15x =  - 24 \\  \:  \: or \: x =  \frac{ - 24}{15}  \\  \: divide \:  - 24 \: and \: 15 \: by \: 3 \\  \: or \: x =  \frac{ - 8}{5}  \\ x =  - 1.6

Hope this helps ...

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