Emily Trebour

[Liam Rogan @Liamjoe33]

Tonight we drink For Cutter

Tomorrow we drink For Boston

Go Eagles

[Emily Trebour @trebourmath]

@Liamjoe33 Couldn’t be more wrong

[Boston College @BostonCollege]

On a cold winter's night, PULSE program instructor @DavidManzo ’77 led a team of BC volunteers through the streets and alleys of Boston neighborhoods as part of the city’s annual homeless census. https://t.co/I7B1yPBu42

[Emily Trebour @trebourmath]

@KeithZacky what are the strategies, the people need to knoe

[Emily Trebour @trebourmath]

When an object changes directions, v(t) will change signs

[Emily Trebour @trebourmath]

Velocity is the derivative of position: v(t)=s'(t)

[Emily Trebour @trebourmath]

@JPerkMath try simplifying the parentheses by taking the derivative of them then use the product rule to find it by the two being multiplied

[Emily Trebour @trebourmath]

The power rule: if f(x)=an^x then f'(x)=anx^(n-1)

[Emily Trebour @trebourmath]

Would this be the right graph for #5 on the review packet? #help

[Emily Trebour @trebourmath]

When f(x) has a slope of 0, the graph f'(x) will have a y-value of zero.

[Emily Trebour @trebourmath]

When you are given the derivative of a certain point on a parabola and it equals 0, then you know that is the vertex!

[Emily Trebour @trebourmath]

The slope of f(x)= y-coordinate of f'(x)

[Emily Trebour @trebourmath]

Can anyone give help on 3&4 on the hw? I don't know if my answers to one and two are right so I don't know... #help

[Molly Morris @guacamollymath]

again, just like limits we have to make sure that when we plug in zero for h the num and denom don't equal zero #facts

[Emma Krall @emmalovesmath17]

When subtracting f(x) from f(x+h), remember to subtract the whole function, not just the first term :)

[Emily Trebour @trebourmath]

Tip: when you are asked to find the derivative of a line, the answer is just the slope because the slope of a line is constant!

[Emily Trebour @trebourmath]

@caroline_math Try using f(x) from the problem, and plug in (x+h) according to the equation. You get a long equation

[Emily Trebour @trebourmath]

Need some #help on number 11 on the homework... where can I go from here?

[Emily Trebour @trebourmath]

A function is non differentiable when the tangent at x=0 is vertical, meaning that the slope is undefined.

[Emily Trebour @trebourmath]

Any one have any idea how to do the challenge problem on the hw? #imstumped