Answer:
D
Step-by-step explanation: Time Stamp (6 9 10 32)
Easiest way is to graph both equation and look for the intersections see attached sreen shot
or solve by substitution
y = 2x
y = x²- 8
2x = x²- 8 solve for x
0 = x² - 2x - 8 factor
0 = (x - 4)(x + 2)
0 = 0 when x = 4 and -2
calculate the y values
y = 2x x = 4
y = 8 (4, 8)
y = 2x x = -2
y = -4 (-2, -4)
Given:
Hayden minutes to complete each level of his video game.
He plays for minutes.
To find:
The number of levels he will complete.
Solution:
We have,
Required time for each level =
Total time =
The number of level is
On further simplification, we get
Number of levels must be a whole number. So, approx to value to the preceding whole number.
Therefore, Hayden will complete 6 levels if he plays for minutes.