medium · SAT Math
A lab technician measures the number of bacteria in a culture every 2 hours, as shown below. Time (x, hours): 0 2 4 6 Bacteria count (y): 5 15 45 135 The x-values are equally spaced, with each step covering 2 hours. Based on the pattern, what is the bacteria count at x=8 hours?
- 45
- 225
- 405
- 1215
Sign up free to see the explanation and track your rank →
More SAT Math practice
- What is the greatest integer value of x that satisfies the inequality (2)/(3)(9 - 6x) ≥ 4x
- What is the value of c?
- If 5x - 12 = 3x + 8, what is the value of 2x?
- A print shop's total charge, in dollars, for an order of n p… — According to this function
- What is the price, in dollars, of one food ticket?
- Which of the following describes all values of x that satisfy both 2x + 1 > 5 and x - 3 <
- If 2x + y = 13 and 3x - y = 7, what is the value of x + y?
- What is the value of x+y?