Answer: 
Step-by-step explanation:
Given: Emelina wrote the equation of a line in point-slope form as shown below.

To write the equation in intercept form, first we multiply 3 inside the bracket values in the right side , we get

Now, subtract 4 from both sides , we get

Hence, Emelina’s equation in slope-intercept form : 
Answer:
The numbers:
1, -3, 2, -9, 3, -15, 4, -21,
are not linear.
Step-by-step explanation:
If it was linear:
4, 3, 2, 1, -3, -9, -15, -21
Answer:
its b
Step-by-step explanation:
its b i for some reason got it right
Answer:
17
Step-by-step explanation:
since you are subtracting a negative number it reverses, so you actually ADD the two together
so, 12 1/2 + 4 1/2
add the whole numbers first;
12+4=16
then fractions:
1/2 + 1/2= 1
then all together;
16+1=17!
Answer:

Step-by-step explanation:
Given : The formula for the area of a trapezoid with altitude k and bases m and n is 
We have solve for m .
Consider the given formula 
Multiply both side by
, we have,

Now subtract n both side, we have,

Thus, 