The student went wrong in step three. the solutions should have been -3 and 5
Answer:
28.9°c
Step-by-step explanation:
The correct graph would be graph A.
Since the line hits the y-axis at -1. And it goes down 2 and to the left 3 for each point.
9514 1404 393
Answer:
Step-by-step explanation:
A graphing calculator answers these questions easily.
The ball achieves a maximum height of 40 ft, 1 second after it is thrown.
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The equation is usefully put into vertex form, as the vertex is the answer to the questions asked.
h(t) = -16(t^2 -2t) +24
h(t) = -16(t^2 -2t +1) +24 +16 . . . . . . complete the square
h(t) = -16(t -1)^2 +40 . . . . . . . . . vertex form
Compare this to the vertex form:
f(x) = a(x -h)^2 +k . . . . . . vertex (h, k); vertical stretch factor 'a'
We see the vertex of our height equation is ...
(h, k) = (1, 40)
The ball reaches a maximum height of 40 feet at t = 1 second after it is thrown.
Answer:
$11
Step-by-step explanation:
multiply $2 by four because they charge by hour and not by half hour. = 8
add $3 to 8. =11