<u>Answer : </u>
The value of r in (4,r),(r,2) so that the slope of the line containing them is is 7
<u>Solution: </u>
Slope of the line which is passes through
→ (1)
From question given that two points are (4, r), (r, 2). Hence we get
By substituting the values in equation (1),
→ (2)
Also given that slope that is m = , so on substituting the value of m in equation (2),
On simplifying,
-5r+20=6-3r
5r-3r=20-6
2r = 14
r =7
Hence value of r is 7.
11.
-1 | 4 ( 1/3 ) | 4/9
0 | 4 ( 1 ) | 4
1 | 4 ( 3 ) | 12
2 | 4 ( 9 ) | 36
11 X 10 X 10FWWFSFSWWWWWWW
Answer:
A
Step-by-step explanation: