Reference no: EM13998184
1. Simplify the difference quotient for: f(x) = 3x2 - 4x
2. Find the equation of the quadratic whose graph has the vertex of (5, 1) and goes through the point (3, -7)
3. On graph 1, draw a graph that would represent a function. Tell how you know it is a function. On graph 2, draw a graph that would represent something that is NOT a function. Tell how you know it is NOT a function:
I know this IS a function because... I know this IS NOT a function because...
4. Wally's Widget World produces 825 widgets per month. The fixed cost of widget production is $567. The marginal cost is $7 per widget. Widgets sell for $28 each.
(A) Write an equation for the cost function, C(x)
(B) Write an equation for the revenue function, R(x)
(C) Write and simplify an equation for the profit function, P(x)
(D) Find the break-even point: number widgets __________ dollar amount __________
(E) Average cost per widget each month ______________________ (round to the nearest cent)
5. Let f(x)= (3x2+14x+8)/(2x2+7x-4)
(A) Equation of vertical asymptote(s) if none, write none
(B) Equation of horizontal asymptote(s) if none, write none
(C) point of hole(s) if none, write none
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What is the minimum speed the softball must have
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Write an equation for the cost function
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Determine if the following signals are periodic
: Please help me solve following question, thanks!!! Determine if the following signals are periodic and, if so, what the fundamental period is. (a) x1[n] = cos(0.8n);(b) x2[n] = cos(0.8πn+0.2π);(c) x3[n] = 3cos(0.8πn) + 4sin(0.5πn).
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Find the current i for the elements using complex algebra
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Electric and engineering
: Electric and engineering 1.A purely imaginary signal has a purely imaginary Fourier transform. is this true? and why?
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