shadow29916
29.01.2020 •
Mathematics
The vertex of the parabola is at (-3,-2) which of the following could be its equation
a; x=-2(y+3)^2-2
b; x=-2(y-2)^2-2
c; x=-2(y-2)^2-3
d; x=-2(y+2)^2-3
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Ответ:
D;x=-2(y+2)^2-3
Step-by-step explanation: since,(-3,-2) is the vertex of parabola this means that when y=-2, x must be equal to -3
but this is true only in D part
Ответ:
(-12-3)/(-1-2)= -15/-3= 5
slope is 5
y=5x+b
-12=5(-1)+b
b or the y-int equals -7
therefore the equation is y=5x-7