Okay so to convert x=3y+6 into y intercept form you need to f<span>irst subtract x from both sides of the equation:
</span>x + 3y = 6
<span>(x + 3y) -x = 6 - x </span>
<span>3y = -x + 6 <-- (Which is the same thing as 6-x, but with x in front) </span>
<span>Now, to get rid of the 3 on the y side, divide by 3 on both sides of the equation (remember, what you do to one side you MUST do to the other side of the equation as well):
</span>(3y)/3 = (-x + 6)/3
<span>y = (-x/3) + 6/3 </span>
<span>or </span>
<span>y = (-1/3)x + 2 (Same thing, don't forget the negative) </span>
<span>y = mx + b </span>
<span>So the slope is (-1/3) and the y-intercept, b, is 2. </span>
<span>Hope you could understand that :3</span>
If in ax^2+bx+c=0 form then
use quadratic formula
x=
or
input and subsitute and that is the answer
Answer:
x = 28
y = 83
Step-by-step explanation:
We can use ratios to solve
18 21
------ = -------
24 x
Using cross products
18x = 24*21
Divide each side by 18
x = 24*21/18
x =28
The angles must be equal
<M = <I
83 = y
