The line through (a,b) and (c,d) is
(c-a)(y-b) = (d-b)(x-a)
Picking the last two points,
(-2 - -6)(y - -21) = (-14 - -21)(x - -6)
4(y+21) = 7(x+6)
When x=0
4y + 84 = 42
4y = -42
y = -21/2
Answer: -21/2
We never used the first point, let's check it's on the line
4(y+21) = 7(x+2)
4(-28 + 21) = -28
7(-10 + 6) = -28, good
The correct statements about the equation are b, c, and e.

<h3>Polynomial;</h3>
The highest power of the polynomial is called the degree of the polynomial.
We have to determine
Which equation accurately represents this statement?
Statement; Negative 3 less than 4.9 times a number, x, is the same as 12.8.
Then,
The equation accurately represents this statement is;

Hence, the correct statements about the equation are b, c, and e.
To know more about polynomial click the link is given below.
brainly.com/question/17822016
8x^5 * 19x^12
I believe would be your answer.
question 1 :- sum of all angles of a triangle is 180°
so, x + 39° + 25° + 15° = 180°
⇒x + 79° = 180°
⇒x = 101°
question 2 : draw the along with AD and make and triangle as shown in figure.
as ABCD is a parallelogram. so, angle FDE = 180° - x
and angle FED = 180° - x [ as FEA + FED = 180° ]
now from ∆DEF,
50° + 180° - x + 180° - x = 180°
⇒230° - 2x = 0
⇒x = 105°
also read : If (A + B) =(A-B) then the angle between the Ả and B.
brainly.in/question/12391097
(SAT Prep) In the figure, a+b+d+e =
A. 330°
B. 325°
C. 290°
D. 300°
If you meant -a minus -b, then this equation will then be -7 minus -16
-7-(-16)
-7+16
=9