Question

Thiti_

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3. The line (a); y = x+ k (kis a constant) is tangent to both the parabola (b) ; y = x - 5x+7
and the parabola (c) ; y = x^ +3x-1.
Point Pis the point of tangency of the.line (a) and the parabola (b) , point Q is the point
จุดซด
of tangency of the line (a) and the parabola (c) and point R is the intersection of the
parabola (b) and the parabola (c) .
Fill in the following blanks with the correct numbers.
ศาตวก
(1) The constant k
-
(2) The X-
COordinate of the point Pis
the r- coordinate of the point Q
3
is
2)
and the r-coordinate of the point R is
3)
The area surrounded by the line (a) , the parabola (b) and the parabola (c) is
(c)
(b)
(R
(a)
P

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