All categories

3 years ago

Which statements about the graph of the function f(x) = –x2 – 4x + 2 are true? Check all that apply.

1 answer:

4 0

FALSE - The domain is all real numbers
TRUE - downward parabola, max-point vertex (-2, 6) So the range is {y|y ≤ 6}.
TRUE - increases to vertex over the interval (–∞ , –2).
FALSE - The function only decreases from vertex over the interval (−2, ∞).
TRUE - The function has a positive y-intercept. -(0)^2 - 4(0) + 2 = 2

You might be interested in

The population of a city is expected to increase by 7.5% next year. If p represents the current population, which expression rep

Elodia [21]

$p+0.075p=1.075p$

7 0

3 years ago

Read 2 more answers

John's car is stopped at a red light. When the light changes, the car accelerates to 45 miles per hour in 15 seconds. What is th

Ede4ka [16]

Initial velocity of John's car (V1) = 0 miles per hour
Final velocity of John's car (V2) = 45 miles per hour
Time taken for acceleration = 45 seconds
Then
Acceleration = (V2 - V1)/Time taken
   = (45 - 0)/15 miles per hour per second
   = 45/15 miles per hour per second
   = 3 miles per hour per second.
So the approximate rate of change in the miles per hour that John's car accelerated is 3 miles per hour per second. The correct option among all the options given in the question is option "A".

5 0

3 years ago

Read 2 more answers

Determine the graph of the polar equation r=4/(1-1/2cosx(theta))

crimeas [40]

Answer:

see below

Step-by-step explanation:

We assume you want the graph of ...

$r=\dfrac{4}{1-\frac{1}{2}\cos{(\theta)}}$

A graphing calculator or spreadsheet is useful for this.

You know cos(θ) = cos(-θ), so the graph is symmetrical about the x-axis. You can evaluate the function at a few points to find the general outline.

r at 0° = 8

r at 30° ≈ 7.05

r at 45° ≈ 6.19

r at 60° ≈ 5.33

r at 90° = 4

r at 120° = 3.2

r at 135° ≈ 2.96

r at 150° ≈ 2.79

r at 180° ≈ 2.67

6 0

3 years ago

What is the fill in the blank answers?

Olenka [21]

Think first is Distributive Property
Combine any LIKE TERMS
Isolate the VARIABLE
By using INVERSE
Check your ANSWER
I think these are the answers hope it helps!

4 0

2 years ago

The graph of y=f(x) is shown on the grid. Use the graph to workout and estimate for f(2.5)

Wewaii [24]

Check the picture below.

6 0

1 year ago