Q:

Consider the equations below. y = 200 + 350x y = 3x When x = 7, which equation has the greater value? Drag the equations into the correct boxes so that the inequality statement is true: ______  >  _____

Accepted Solution

A:
Let
y1=200 + 350x 
y2=3x

for x=7
y1=200+350*7----------> y1=200+2450------> y1=2650
y2=3*7--------------------------> y2=21

then y1 > y2
(200 + 350x) > (3x)

the answer is 
(200 + 350x) > (3x)

the solution of this inequality is
350x-3x > -200-----------> 347x > -200
x > -0.5764
the solution is the interval  (-0.5764, ∞)