I believe you are right with all of them.
Answer:
Step-by-step explanation:
x + 3 y = 1 ----------------(I)
-3x - 3y = -15 -------------(II)
Add the equations and y will be eliminated and we can find the value of x
(I) x + 3y = 1
(II) <u>-3x -3y = - 15</u> {Now add}
-2x = - 14
x = -14/-2
x = 7
Plugin x =7 in equation (I)
7 + 3y = 1
3y = 1 - 7
3y = -6
y = -6/3
y = -2
Answer:
16
Step-by-step explanation:
<u>Given:</u>
<u></u><u></u>
<u></u><u></u>
<u>To find:</u>
<u></u><u></u>
<u></u>
<u>Formula:</u>
<u></u><u></u>
<u></u>
Here,
Squaring both sides of:
Using formula written above on LHS:
Given
So, correct answer is:
-4x + y = 10
y = 4x + 10
Slope = 4
x=3, y = 4*3 + 10 = 22