A straight line in the xy- plane has a slope of 4 and a y-intercept of 4. On this line, what is the x-coordinate of the point whose y-coordinate is 800 ? Choose the correct choice
A) 233	B) 299	C) 333	D) 199	E) 339
Eq of line = Y = MX +C   M = 4,   C= 4   Y=4X + 4,   Substitute Y by 800 as given in question.   800=4X+4 , X = 199.   correct option is 199
<result>D</result>
A straight line in the xy- plane has a slope of 4 and a y-intercept of 4. On this line, what is the x-coordinate of the point whose y-coordinate is 800 ?