What statement correctly describes the key features of the graph of f(x) = 4(1/2)^(x + 1) − 3? Y-intercept of (0, −1), starts up on the left, gets closer to y = −3 on the right Y-intercept of (0, −1), starts down on the left, gets closer to y = −3 on the right Y-intercept of (0, 1), starts up on the left, gets closer to y = −3 on the right Y-intercept of (0, 1), starts down on the left, gets closer to y = −3 on the right

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What statement correctly describes the key features of the graph of f(x) = 4(1/2)^(x + 1) − 3? Y-intercept of (0, −1), starts up on the left, gets closer to y = −3 on the right Y-intercept of (0, −1), starts down on the left, gets closer to y = −3 on the right Y-intercept of (0, 1), starts up on the left, gets closer to y = −3 on the right Y-intercept of (0, 1), starts down on the left, gets closer to y = −3 on the right

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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to work out the y intercept put x = 0 into f(x) and work it out
= 4(1/2)^(0+1) - 3 = ?

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Other answers:

Okay did it now how do I solve?
what value did you get ?
= 4(1/2)^(0+1) - 3 = 2^1 - 3
-1
right
Now what?
so work out some values of f(x) for negative x's like x = -2 2 f(-2) = 4 (1/2)^(-2+1) - 3 = 4 / (1/2) -3 = 5 f(-3) = 4(1/2)^-2 - 3 = 4 / 1/4 - 3 = 13 so the left side of the curve will descend pretty steeply
Oh okay so what's next?
|dw:1435686232852:dw|
So B
for high values of x the curve will tend to approach -3 because 1/2 to a high power will approach zero and that leaved - 3
i'm not sure - i thought it would be up on the left
|dw:1435686456854:dw|
So A or B?
it starts at high value of f(x) on the left so i think it starts 'up on the left' what do you think?
I would go for A
A
yeah
if i tag u can u help me with two more?
i cant at the moment. I have to go right now.

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