What equation below has a y-intercept of zero?

Y=x-4
Y=0x + 8
Y= -3x
Y=2x + 1

Y = -3x

Step-by-step explanation:

a y-intercept is represented by the constant value ==> look for equations which have constant value = 0, namely Y = -3x

28

step-by-step explanation:

because that's the answer

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°