SOLUTION: Determine whether each is a linear function or not. Identify the degree of the function, slope and y-intercept. 1. f(x)=-6x-7 2. f(x)=3 3. f(x)=x-4 4. f(x)=5x-3 Thank you

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Question 1181539: Determine whether each is a linear function or not. Identify the degree of the function, slope and y-intercept.
1. f(x)=-6x-7
2. f(x)=3
3. f(x)=x-4
4. f(x)=5x-3
Thank you.
Found 3 solutions by Boreal, ikleyn, MathLover1:
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website!
These are all linear functions of the form y=mx+b
for 1 the slope is 6 and the intercept -7. The degree is 1
for 2 the slope is 0 and the intercept 3. The degree is 0
for 3 the slope is 1 and the intercept -4, the degree is 1
for 4 the slope is 5 and the intercept is -3, the degree is 1

Answer by ikleyn(52782)   (Show Source):
You can put this solution on YOUR website!
.

A correction to the post by @Boreal:

            For 1,   the slope is   -6.

Answer by MathLover1(20850)   (Show Source):
You can put this solution on YOUR website!

A linear function is a function whose graph is a straight line, that is, a polynomial function of degree or .
A linear function has the following form:
where is a slope and is y-intercept
A linear function has one independent variable and one dependent variable.
The independent variable is and the dependent variable is .

1.
is a linear function
degree:
slope:
y-intercept:
2. => a horizontal line
is a linear function
degree:
slope:
y-intercept:

3.
is a linear function
degree:
slope:
y-intercept:
4.
is a linear function
degree:
slope:
y-intercept: