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What is slope of line 8y = -16?

a. 0
b. 2
c. 16
d. undefined

dont have a clue how to do this

2 answers

recall that if the line is written in the form
y = mx + b, then m is the slope

so ...

8y = -16 or, how about
8y = 0x - 16
y = (0/8)x - 2
y = 0x - 2

so the slope must be 0

in general if the linear equation can be written in the form
y = k, where k is just a constant, you have a horizontal line and the slope is zero
if the linear equation can be written in the form
x = k , you have a vertical line and the slope is undefined.
Wasn't putting 0 in for slope...

thanks