Select the relations that are functions.
{(a, 1), (b. 1), (c, 1)]
[(a, a), (a, b). (a. c)}
{(1,-a), (2. a). (3. a)]
f(a, a), (b, b), (c, c)]

Find the arc length parameter along the given curve from the point where tequals=0 by evaluating the integral s(t)equals=integral from 0 to t startabsolutevalue bold v left parenthesis tau right parenthesis endabsolutevalue d tau∫0tv(τ) dτ. then find the length of the indicated portion of the curve r(t)equals=1010cosine tcost iplus+1010sine tsint jplus+88t k, where 0less than or equals≤tless than or equals≤startfraction pi over 3 endfraction π 3.

What does x = in this equation x+3+2x=x+5

Give all possible names for the line shown.calculation tip: lines can be written with either point first.