Question

1) it uxa<X c then
d
c с
b
(2) if axd=bxc then
(3) ifax d> bxc then >
Practice Set 1.2
(2) 0,2
(5) 4014
1. Compare the following numbers.
(1) -7,7-2
13
(6)-26
15 | 7
20' 20
12 16
5
4
29
29
(3),
(8) 7513
(7)
(9)
123
15 5
(10)
3​

Answer 1

b²-4ac >=0 For there to be real roots,

so b² - 4a >=0

b² >= 4a

so if b = 4, a can be 1, 2, 3, or 4

if b = 3, then a can be 1 or 2

if b =2, then a can be 1

b can't be 1

So 4 + 2 + 1 = 7 possible equations