Which of the following functions best describes this graph
Asked by maham237 @ in Mathematics viewed by 316 People
Which of the following functions best describes this graph?
Asked by maham237 @ in Mathematics viewed by 316 People
Which of the following functions best describes this graph?
Answered by maham237 @
Answer:
C
Step-by-step explanation:
If you fill in x=0, you are left with the y intercept. In the picture you can see it must be larger than y=10. This invalidates answer A and D.
The x-coordinate top of the parabola ax²+bx+c=0 is given by y = -b/2a, so immediately we can see -b has to be positive. This leads you to answer C because -9x implies b=-9, and --9 is positive.
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