# Algebra

Find the number of the solutions to each system.
a. 4x-y+1=0 4x-y+3=0
b. 2x-y+4=0 4x-2y+8=0
Write a question that can be solved using a system of linear equations.
Solve the following system of equations by graphing: y=x+3 and y=-2x-3

1. 👍 0
2. 👎 0
3. 👁 447
1. (a) no solutions. How can 4x-y be both -1 and -3?

(b) many solutions: if you multiply the first equation by 2, you will see that both equations describe the same line.

Google is your friend. Use it to get lots of examples of linear equations in problems.

To solve by graphing, you'll have to do the graphs. The solution is where the graphed lines intersect.

1. 👍 0
2. 👎 0
2. In google type :

functions graphs online

When you see list of results click on :

Draw Function Graphs - Plotter - Rechneronline

When page be open in blue rectangle type :

x + 3

In gray rectangle type :

- 2 x - 3

Then click option :

Draw

Solution :

x = - 2 , y = 1

1. 👍 0
2. 👎 0

## Similar Questions

1. ### ALGEBRA CHECK ANSWERS

Solve each equation by graphing the related function. If the equation has no real-number solution, write no solution. NOTE: when I write + it has a minus on the bottom too x^2+7=0 a. x= +7 b. x = +3.5 c. x= 0 d. no solution ***

asked by a on April 4, 2017
2. ### Math

1. How many solutions does the system of equations have 3x=-12y+15 and x+4y=5 a. one b. two c. infinitely many*** d. none 2. How many solutions does the system of equations have y=6x+2 and 3y-18x=12 a. one b. two c. infinitely

asked by Kaai97 on January 19, 2016
3. ### Math

1. How many solutions does the system of equations have? 4x=-12y+16 and x+3y=4 A. One B. Two C. Infinitely many D. None 2. How many solutions does the system of equations have? Y=5x+7 and 3y-15x=18 A. One B. Two C. Infinitely many

asked by Me on January 11, 2019
4. ### algebra

how many real number solutions does the equation have? 0=2x^2-20x+50 A. 1 solution B. 2 solutions C. no solutions** D. infinite solutions

asked by zzz on April 29, 2019
1. ### Algebra

Consider the equation 4x^2 – 16x + 25 = 0. (a) Show how to compute the discriminant, b^2 – 4ac, and then state whether there is one real-number solution, two different real-number solutions, or two different imaginary-number

asked by Pamela on July 7, 2009
2. ### math

Write an equation with a variable on both sides of the equal sign that has infinitely many solutions. Solve the equation and explain why it has an infinite number of solutions. I have no idea?

asked by Katie on December 17, 2015
3. ### Math

How many solutions does this system have? x-2y=2 y= -2x+5 a. infinitely many solutions b. no solutions c. two solutions d. one solution ******

asked by Anonymous on January 8, 2018
4. ### Math

If a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. 6x − 2y = 2, 9x − 3y = 1

asked by Anonymous on August 5, 2011
1. ### Algebra 1

9. Find the solutions to the system. y=x^2+5x+6 y=4x+12 A. (2,20) and (-3,0) B. (2,20) and (-3,-18) C. (-2,-20) and (-3,-18) D. no solutions 10. Find the solutions to the system. y=x^2-3x-1 y=8x-1 A. (0,-1) and (11,388) B. (0,-1)

asked by anon on April 23, 2018
2. ### PRE-ALGEBRA

1. 5h – 9 = –16 + 6h (1 point) 4 –7 7 10 2. 4x + 4 = 9x – 36 (1 point) –8 –7 8 –3 3. Which of the following equations has an infinite number of solutions? (1 point) 3x – 3 = –4x 2y + 4 – y = 16 7x + 5 = 4x + 5

asked by I NEED HELP PLEASE!!!!!!!!!!!! on December 18, 2014
3. ### math

If you try to solve a linear system by the substitution method and get the result 0 = 8, what does this mean? A. The system has one solution, (0,8). B.The system has one solution, (8,0). C.The system has no solutions. D.The system

asked by math !!@@ on April 3, 2020
4. ### algebra 2

Classify the system , and determine the number of solutions. This system is inconsistent. It has infinitely many solutions. This system is consistent. It has infinitely many solutions. This system is inconsistent. It has no

asked by Kim on July 24, 2008