Answer:
<u>Answer</u><u> </u><u>→</u><u> </u><u>y</u><u> </u><u>=</u><u> </u><u>-</u><u>7</u><u>x</u><u> </u><u>+</u><u> </u><u>1</u><u>2</u>
Step-by-step explanation:
General equation of a line:

- m is the slope
- c is the y intercept
From the question;
m is -7
c is 12

Answer:

Step-by-step explanation:
The formula for the surface area of a pyramid is 
Given two points (X1,Y1) and (X2,Y2) on a line, the slope =(Y2 - Y1) /(X2 - X1).
You are given the points (1,3) and (3,-2). Implying X1 =1 , Y1 =3, X2=3, Y2=-2
Use the formula for the slope above to answer the question. If you still have problems getting the correct answer, ask for more help.
Your answer should be a negative fraction or decimal if you are using a calculator.
X+2y=8
2y=8-x |:2

y=ax+b ==>

We calculate the zeros of functions (0,b)
(0,b) = (0,4)
We have solution:
x=0, y=4
Answer:
Volume of square pyramid:
V = (1/3) x base area x height
= (1/3) x 19 x 19 x 9
= 1083
Hope this helps!
:)