Y = - 1.3 (x + 3) 2 - 9

Given equation, y = - 1.3 (x + 3) 2 - 9 is in slope intercept form.

Step-by-step explanation:

Slope intercept form standard formula:

y = mx + c

where,

y = y intercept

x = x intercept

m = slope

c = constant

We are given:

y = - 1.3 (x + 3) 2 - 9

y = - 2.6x + 7.8 - 9

y = - 2.6x - 1.2

So,

Slope = m = - 2.6

constant = 1.2