is 2x+3y=7 a linear and literal equation ( I belive it is)
y=2x-6 Is this true, false or open (I belive it is true)
16<2(x) Is this true, false or open if x=10 ( I belive this to be true)
a+4=8 Is this true,false or open if a=5 ( I think that this is false)
I am not understanding these any help would be greatly appricated
2007-10-18 05:27:37 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
True
Open
True
False
2007-10-18 05:36:17 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Normally a linear graph has an equation that has no terms that is squared or with powers.Basically 2x+3y=7 is a linear equation because there is no squared terms.
As for the question y=2x-6 Is this true, false or open (I believe it is true) it has no regards to whether it is true or not.Unless u have a graph that u do not know the equation.If u don't know the equation of that particular line then the chances of "true" and "false" would be half-half.
For the question a+4=8,5 is the wrong solution.a is 4 (4+4=8) .
2007-10-18 05:38:14 · answer #2 · answered by Kenneth Koh 5 · 0⤊ 0⤋
2x + 3y = 7 is linear because the exponents on the variables are 1. It is literal because there is more than one variable in the equation.
y = 2x - 6 is open, since you have no test number to plug in.
You can't state T or F
16 < 2x is true if x = 10 since 16 < 20
a + 4 = 8 is false if a = 5 since 5 + 4 = 9 not 8
2007-10-18 05:35:41 · answer #3 · answered by Linda K 5 · 0⤊ 0⤋
Yes. It is linear because both x and y are 1st degree. It is literal because yo can solve for either x or y simply by rearranging terms.
y=2x-6 is open
16<2x is true since 16<20
a+4 = 8 is false since 9 not equal 8
2007-10-18 05:40:22 · answer #4 · answered by ironduke8159 7 · 0⤊ 0⤋