Answer:
the answer to your question is $25.81
#4
Examine the relationship between y and x, waiting until later to examine the y-intercept. For example: If we look at B, and mult. x = 2 by 0.55, we get 1.10, which is not even close to the y = 6.5 given in the table. If, however, we mult. 2 by 3.55, we get 7.10, which is not the same as the y = 6.5 given in the table, but is much closer than 1.10.
Also note that all y values in the table are positive, so a negative slope would be inappropriate. That eliminates choices A and D.
Focus now on the remaining choices B and C. Again, let x= 2 and determine the associated y value. Which y value is closer to the table's 6.5?
B: 0.55(2) + 3.55 = 4.65 (relatively far away from the table's 6.5)
C: 3.55(2) - 0.55 = 6.55 (very close to the table's 6.5)
C is the correct answer.
Simple....
x<6
This means that on your graph at 6 it's a circle (not colored in) and it goes to the left indefinitely...
Thus, your answer.
Although we are not outrightly given with the illustration showing lines AB and CD, we may determine if they are perpendicular based on their slopes.
For pair of perpendicular lines, the product of their slopes should be equal to -1. This means that the slopes are multiplicative inverses of each other. We then, inspect each choice.
(a) (5/3)(-3/5) = -1
(b) (4/3)(-3/4) = -1
(c) (5/3)(-3/4) = -5/4
(d) (4/3)(-3/5) = -4/5
The answer could either then be a or b.
