Question

30 POINTS!!! look at picture pls

Look at this graph:

-10
-8
-6
-4
-2
2
4
6
8
10
-10
-8
-6
-4
-2
2
4
6
8
10
0


What is the equation of the line in point-slope form?

Answer 1

y = .53x + .76

Explanation:

let's take any two x, y co-ordinates by looking at the graph:

x1, y1 = -7.1, -3

x2, y2 = 8, 5

equation of the point - slope form is,

y = mx + c

where slope, m = y2 - y1 / x2 - x1

= 5 + 3 / 8 + 7.1

= 8/15.1 = .53

let's take any x, y co-ordinates to find the constant c

i am taking x2, y2

5 = .53(8) + c

5 = 4.24 + c

c = 5 - 4.24 = .76

thus, the equation of the line in point - slope form is,

y = .53x + .76