What is the correct answer for this?
1 answer:
Answer:
4. maximum: 22; minimum: 1
5. maximum: 24; minimum: -6.25
6. maximum: 49.7; minimum: 39.625
Step-by-step explanation:
I find a graphing calculator to be "appropriate technology" for answering questions of this sort. For the first and last questions, the extremes are the values of the function at the ends of the intervals specified.
For the second question, the parabola opens upward and the vertex is in the given interval, so the vertex is the minimum. The maximum is found at the end of the interval that is farthest from the vertex.
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Answer:
see explanation
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = x + 4 ← is in slope- intercept form
with m =
(a)
Parallel lines have equal slopes, thus
y = x + c ← is the partial equation of line B
To find c substitute (- 3, 1) into the partial equation
1 = - 1 + c ⇒ c = 1 + 1 = 2
y = x + 2 ← equation of line B
(b)
Given a line with slope m then the slope of a perpendicular line is
= -
= -
= - 3, thus
y = - 3x + c ← is the partial equation of line T
To find c substitute (- 3, 1) into the partial equation
1 = 9 + c ⇒ c = 1 - 9 = - 8
y = - 3x - 8 ← equation of line T