Answer:
- The instantaneous rate of increase of f(x) at
is 3. - One possible equation of this line is y = 3x - 16.
- The line is tangent to the graph of y = f(x). The slope of the line is the same as the instantaneous rate of increase of f(x) at
.
Step-by-step explanation:
<h3>1.</h3>
.
<h3>2.</h3>
.
In other words, the graph of y = f(x) passes through the point (3, -7) where
.
The point-slope form of a line in a cartesian plane is:
.
For this line,
is the point on the line, while
is the slope of the line.
The equation of this line will thus be
.
That's equivalent to
.
<h3>3.</h3>
Refer to the diagram attached. The line touches the graph of y = f(x) at x = 3 without crossing it. The line here is thus a tangent to the graph of y = f(x) at x = 3. The slope of the line represents the instantaneous rate of increase of f(x) at
.
$69.24 is the correct answer because 56.75 multiplied by 1.22 is 69.24
Answer:
m∠ACD = 40°
Step-by-step explanation:
(4x + 2) + (6x - 12) = 8x,
10x - 10 = 8x,
2x = 10,
x = 5
8(5) = 40°
Answer:
120 in³
Step-by-step explanation:
8 in • 3 in • 5 in
8 in • 15 in²
120 in³
$800 increased by 25% = 1.25 x 800 = $1,000