In this figure please see attached questions

y2 = 14

y1 = 2

Solution

m = (14 - 2) / (8 - 2)

m = 4 / 4 = 1

Remark

Why is the slope one? I should be 2 shouldn't it? No because there is a common factor to be taken out -- the common factor is 2

Step-by-step explanation:

y = 2x - 2

x        y

2       2

4       6

6      10

8       14

I will use Desmos to get the line.

The slope  should be 2

Formula

Slope (m) = ( (y2 - y1) / (x2 - x1) )

Givens

x2 = 8

x1 = 4

y2 = 14

y1 = 6

Solution

m = ( (14 - 6) / ( 8 - 4)

m = 8 / 4

m = 2

2x^2+5x+17

your welcome. : )

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8