When graphing the following equations, which one will be a straight line?
A.
y = x^2 + 2
B.
f(x) = 2/3x + 1
C.
y = |x + 4|
D.
x^ + y^ = 1

Question

When graphing the following equations, which one will be a straight line?
A.
y = x^2 + 2
B.
f(x) = 2/3x + 1
C.
y = |x + 4|
D.
x^ + y^ = 1

anonymous · Answer

A

anonymous · Answer

Oh, I thought when dealing with x squared , you will see a curve?

anonymous · Answer

ya x^2 is a parabola

anonymous · Answer

it would be B because it is a linear equation

anonymous · Answer

thats what I think too, but y = |x + 4| is my other choice and so I am confused again

anonymous · Answer

since it is an absolute value the graph would loook like |dw:1352309638711:dw|

anonymous · Answer

thus not being a strait line

anonymous · Answer

do you understand why?

anonymous · Answer

V" is the result of the negative absolute values becoming positive?

anonymous · Answer

if B) is straight line is the slope m= 2/3 ? yes or no?
so that f(x) = (2/3)x + 1 ? yes ?

anonymous · Answer

thankyou

anonymous · Answer

not a problem