Subtract 2 from both sides
-2u = -7u + 17 - 2
Simplify -7u + 17 - 2 to -7u + 15
-2u = -7u + 15
Add 7u to both sides
-2u + 7u = 15
Simplify -2u + 7u to 5u
5u = 15
Divide both sides by 5
u = 15/5
Simplify 15/5 to 3
u = 3
The X-intercept is a point where the line crosses the X lines. That means it would be the point where Y=0. Then to find the X-intercept you only need to insert Y=0 into the equation. The calculation would be:
<span> 4×+2y=12
4X+ 2 (0)= 12
4X =12
X=12/4 = 3</span>
S = 14-3 (s being sandras age)
Answer:
equation on circle: (x-h)^2 + (y-k)^2 =r^2
(x-3)^2 + (y+2)^2 = 841
