y= 2x+1, y=3/4x, y= 3.5x-7xto the 2nd power, y= -7+2/7x, y=6.7 - 6.7xsquared, y=3x + 7x
2007-05-01 11:56:56 · 5 answers · asked by the kid 1 in Science & Mathematics ➔ Mathematics
Linear Equations
y = 2x + 1
y = - 7 + 2/7x
y = 3x + 7x
Non linear equations
y = 3/4x
y = 3.5x - 7x²
y = 6.7 - 6.7x²
2007-05-01 12:37:00 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
y = 2x+1 : yes; y proportional to x.
y=3/4x : if it's 3/(4x), no; y proportional to 1/x. if it's (3/4)x, yes.
y= 3.5x-7xto the 2nd power: no; quadratic expression
y= -7+2/7x : no if it's 2/(7x), yes if it's (2/7)x
y=6.7 - 6.7xsquared : no, quadratic expression
y=3x + 7x : yes y = 10x is a multiple of x.
2007-05-01 19:06:21 · answer #2 · answered by Anonymous · 0⤊ 0⤋
A linear function is of the form: y = ax + b
y= 2x + 1 an y = 3x + 7x are linear
The others are not.
2007-05-01 19:03:21 · answer #3 · answered by vahucel 6 · 0⤊ 0⤋
Vahucel is right, but if you meant to type y=(3/4)x instead of y=3/4x then this would also be linear.
Similar for y = -7 + 2/7x
Did you mean y = -7 + (2/7)x ?
2007-05-01 19:08:19 · answer #4 · answered by joncummins1968 4 · 0⤊ 0⤋
In order for an equation to be linear, you can not have exponents with variables (x^2, etc.), nor variables in the denominator (1/x).
2007-05-01 19:08:56 · answer #5 · answered by wugit 1 · 0⤊ 0⤋