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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §1.1 Velocity and Distance, #20 · Calculus · Derivatives

What is the break-even point if … yearbooks cost …1,200+30x…40x$

What is the break-even point if $x$ yearbooks cost $\$ 1,200+30x $t o p r o d u ce an d t h e in co m e i s$ 40x$? (cost per additional book). If it goes above ____ you can't break even.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §1.1 Velocity and Distance, #20

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