Step 1
<u>Find the slope of the function f(x)</u>
we know that
The formula to calculate the slope between two points is equal to

Let

substitute



Step 2
<u>Find the y-intercept of the function f(x)</u>
The y-intercept is the value of the function when the value of x is equal to zero
in this problem the y-intercept of the function is the point 
so
the y-intercept is equal to 
Step 3
Verify each case
we know that
the equation of the line into slope-intercept form is equal to

where
m is the slope
b is the y-intercept
<u>case A) </u>
In this case we have

therefore
the function of case A) does not have the same slope as the function f(x)
<u>case B) </u>
In this case we have

therefore
the function of case B) does not have the same slope and y-intercept as the function f(x)
<u>case C) </u>
In this case we have

therefore
the function of case C) does have the same slope and y-intercept as the function f(x)
<u>case D) </u>
In this case we have

therefore
the function of case D) does not have the same y-intercept as the function f(x)
therefore
<u>the answer is</u>

30 degrees , angles r not affected by change in size
Answer:

Step-by-step explanation:
If it is a direct variation function, then
.
can be found by choosing a point and doing
divided by
.
So we can find
by doing -6 divided by -8 or 9 divided by 12.
Both of these values are equal to 0.75 or 3/4 as a fraction.
So you can say any point in this relation will follow the equation:

Multiply both sides by
:

Answer:
115 I think is the answer