Answer:
![\large\boxed{y=-(1)/(3)x-2}](https://img.qammunity.org/2020/formulas/mathematics/high-school/tnvdo2i2npndno86jm0hl5wzy4nmrds9la.png)
Explanation:
The slope-intercept form of an equation of a line:
![y=mx+b](https://img.qammunity.org/2020/formulas/mathematics/high-school/8nudzfk4b5l0arb9iixag2w8am6zn99zlr.png)
m - slope
b - y-intercept
The formula of a slope:
![m=(y_2-y_1)/(x_2-x_1)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/fc06wy5n2hf2a0hmyba6df4ibmxk1cn53a.png)
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From the graph we have x-intercept (-6, 0) and y-intercept (0, -2) → b = -2.
Calculate the slope:
![m=(-2-0)/(0-(-6))=(-2)/(6)=-(1)/(3)](https://img.qammunity.org/2020/formulas/mathematics/high-school/93l8fa5ho7sy7w906byg3zvb4g6stbkgxg.png)
Put the value of the slope m = -1/3 and the value of the y-intercept b = -2 to the equation of a line:
![y=-(1)/(3)x-2](https://img.qammunity.org/2020/formulas/mathematics/high-school/dvtzh44o4rf6qzbkt4ia9mowq7tn8e32pr.png)