<span>x(t)=2t
y(t)=t^2
A) (-4,4),
x(t)=2t=-4, t=-2
y(-2)=(-2)²=4 , True
</span>B) (-2,-4)
x(t)=2t=-2, t=-1
y(-1)=(-1)²=1 False. we have y=-4
C) (0,0)
x(t)=2t=0, t=0
y(0)=(0)²=0 True
D)(1,2)
x(t)=2t=1, t=1/2
y(1/2)=(1/2)²=1/4 False. we have y=2
E) (6,9)
(-2,-4)
x(t)=2t=6, t=3
y(3)=(3)²=9 True.
Correct answers is A, C, E.
For the volume of triangular prism, volume = 0.5xaxbxc
=0.5x10x7x6
=210cm^3
624 divided by 5 is (and thats your answer)
Hi there!
x - 3y = 9
x = 9 + 3y
-4x + y = 8
-4(9+3y) + y = 8
-36 - 12y + y = 8
-36 - 11y = 8
-11y = 44
-y = 4
y = -4
x - 3y = 9
x - 3(-4) = 9
x + 12 = 9
x = 21
So, your answers are y = -4 and x = 21.
Hope this helps!
