If the value of a is negative in the quadratic function, f(x) = ax + bx + C, and the vertex is at (13, -2), then how many x-inte
rcepts will the graph have?
A. can't be determined
В. 0
C. 1
D. 2
A. can't be determined
В. 0
C. 1
D. 2
1 answer:
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Answer: 3 mi/h
Step-by-step explanation:
Here we have to find the speed at which Sarah walks to school, knowing the distance
she has walked and the time
she expends.
So, in this case we can use the following equation:
Where:
Solving:
This is Sarah's speed