Write all linear equations in slope-intercept form.
-A company can make 10 bridge bulkheads for $70,800, while 19 bridge bulkheads cost $75,300. Find a linear equation that models the cost to produce x bridge bulkheads.
A) y = 9x + 4500
B) y = 500x - 65,800
C) y = 500x + 65,800
D) y = x + 4500

Question

Quizplus · Accepted Answer

The slope is (75300-70800)/(19-10) = 500. The y-intercept is 65800. So the equation is y = 500x + 65800.

Write All Linear Equations in Slope-Intercept Form