Sunday

January 25, 2015

January 25, 2015

Posted by **Anonymous** on Tuesday, January 14, 2014 at 6:13pm.

y = 4x + 3 and 2y - 8x = 3

One, two, infinitely many, or no solutions? My answer is no solutions.

- Algebra -
**Damon**, Tuesday, January 14, 2014 at 6:16pmy = 4 x + 3

y = 4 x + 3/2

two lines with the same slope but different y axis intercepts. They never cross each other and therefore there is no solution to this problem.

- Algebra -
**Anonymous**, Tuesday, January 14, 2014 at 6:24pmThanks. I have a couple more:

x = -4y + 4 and 2x + 8y = 8

Answer: Infinitely many solutions

x - 3y = 15 and 3x - 9y = 4

Answer: Infinitely many solutions

y - 5x = -6 and 3y - 15x = -12

Answer: One solution

- Algebra -
**Damon**, Tuesday, January 14, 2014 at 6:29pmx - 3y = 15 and 3x - 9y = 4

x - 3 y = 4/3

Same slope, never cross NO solutions !

Answer: Infinitely many solutions DIASAGREE

y - 5x = -6 and 3y - 15x = -12

y - 5 x = -4

AGAIN, they are NOT the same. They are PARALLEL and never cross NO solutions

same m = slope = either the same (infinite solutions of parallel (different y intercept) which means ZERO solutions

Answer: One solution NO!

- Algebra -
**Anonymous**, Tuesday, January 14, 2014 at 6:40pmSeems like both have no solutions. I went a bit off in my calculation. I see now.

- Algebra -
**Damon**, Tuesday, January 14, 2014 at 7:04pmWhen in doubt, sketch a graph

**Answer this Question**

**Related Questions**

algebra - 5x=7+4y 20x-16y=28 how many solutions are there for the system of ...

Linear Algebra - I need help please!! How many solutions does the system of ...

algebra 2 - Classify the system , and determine the number of solutions. This ...

math - Help pllsss ASAP!!! have certain answers!! i try but i do not understand...

Algebra - Suppose a linear system of equations has 2012 equations and 2013 ...

7th grade math Ms. Sue please - 1. 2(x – 3) = 2x (1 point) one solution no ...

math - Decide whether the each equation has one solution, no solutions,or ...

Algebra - How many real number solutions does the equation have? y=-4x^2+7x-8 A...

Algebra 2 Helpp :( - QUESTIONS (vvv) (1) Solve the system by subsitution 2x + y...

VERY URGENT MATH~!!!!!!!! - 1. 2(x – 3) = 2x (1 point) one solution no solutions...