Answer:
D
Step-by-step explanation:
The answer is D because for it to be a function x-value can only have one output. For D, 8 has two outputs 1 and 4.
Two complementary angles make a total of 90, so 3x+6x=90, x=10
X=-1/8y^2
If the Vertex is at the origin: V=(h,k)=(0,0)→h=0, k=0
y^2=4px
(-8)(x=-1/8y^2)
-8x=y^2
y^2=-8x
4p=-8
Solving for p:
4p/4=-8/4
p=-2<0 (negative)→The parabola opens to the left
Focus: F=(p,0)→F=(-2,0)
Drectrix: x=-p=-(-2)→Directrix: x=2
Answers:
Focus=(-2,0)
Directrix: x=2
Answer:
y= -28
Step-by-step explanation:
x -y = 11
if x= -17 then substitute x for -17
-17 -y = 11; add 17 to both sides
-17 + 17 -y = 11+ 17; combine like terms
-y = 28; multiply both sides by -1
y= -28