Question

When graphing the following equations, which one will be a straight line?
A.
y = x2 + 2
B.
f(x) = x + 1
C.
y = |x + 4|
D.
x2 + y2 = 1

Answer 1

Hi Welcome to OPenstudy

Linear graphs has an equation that has a degree (or highest exponent) of 1 in the x variable. slope int equation is y=mx + b
it looks like this:

Parabolic graphs has an equation that has a degree (or highest exponent) of 2 in the x variable. general equation: ax^2 + bx +c
it looks like this:

Absolute graphs has a graph that looks like this:
parent equation is y= |x|

and lastly Circle has a general formula of :(x – h)^2 + (y – k)^2 = r^2