Find m and b of y = mx + b.
1
X
1
3
10.9
5
14.5
7
19.8
10
26.0
15
35.2
y / 6.4​

m = 2.25

b = 4.15

Step-by-step explanation:

Let us consider the points (1, 6.4) & (3, 10.9)

Slope (m) = (10.9 - 6.4)/(3 - 1) = 4.5/2 = 2.25

Now, by point slope formula of a line, we have:

Equating it with y = mx + b, we find:

m = 2.25

b = 4.15

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3