1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
butalik [34]
3 years ago
14

Help me plss, number 2.​

Mathematics
1 answer:
Gnesinka [82]3 years ago
3 0

Answer:

At (-2,0) gradient is -4 ; At (2,0) gradient is 4

Step-by-step explanation:

For this problem, we simply need to take the derivative of the function and evaluate when y = 0 (when crossing the x-axis).

y = x^2 - 4

y' = 2x

The function y = x^2 - 4 cross the x-axis when:

y = x^2 - 4

0 = x^2 - 4

4 = x^2

2 +/- = x

Hence, this curve crosses the x-axis twice, once at (-2,0) and again at (2,0).

The gradient at these points are as follows:

y' = 2(-2) = -4

y' = 2(2) = 4

Cheers.

You might be interested in
You want to place stone pavers around the edge of your concrete patio. The patio is 12 ft wide by 14 ft long and each stone pave
Harlamova29_29 [7]

The number of stone pavers needed to go round the patio is 3.

<h3>What is the number of stone pavers needed to go round the patio?</h3>

The first step is to determine the perimeter of the concrete patio.

Perimeter : 12 + 12 + 14 = 38 feet

Number of stone pavers needed to go round the patio : perimeter of the patio / length of each stone paver

38 / 14 = 3

To learn more about the perimeter of a rectangle, please check: brainly.com/question/3205029

#SPJ1

4 0
2 years ago
The storage shed shape of a half-cylinder of radius r and length l.
ira [324]
The first you should have to do is calculate the volume so start by drawing a picture then just go on the math solutions website
5 0
3 years ago
Read 2 more answers
Both lines pass through the point (-3,-4). one has a slope of 4 and the other has a slope of -1/4
Alchen [17]
If the question is to find the slope-intercept form of both lines, here's the answer:
Both lines pass through the point (-3,-4), so we can use these coordinates in both equations. The slope-intercept form is represented by y=mx+b, with m the slope, b the intersection of the line with Y'Y for x=0, y and x the coordinates of a point.
Let's first apply all these for the first line, with a slope of 4.
y = mx + b
y=-3; x=-4; m=4. All we need to do is find b.
-3 = 4(-4) + b
-3 = -16 + b
b=13
So the equation of the first line is y= 4x + 13.

Now, we'll do the same thing but for the second line:
y=-3; x=-4; m=-1/4, and we need to find b.
-3 = (-1/4)(-4) + b
-3 = 1 + b
b= -4
So the equation of the second line is y=(-1/4)x - 4

Hope this Helps! :)
3 0
3 years ago
Josiah and his friends are going to the movies. Each ticket costs $10, and popcorn is $5 a bag. There is a $3 service fee for th
Free_Kalibri [48]
Make sure you check this because i do make mistakes.

10 x 4 = 40

75 - 40 = 35

So josiah has 35 dollars to spend for things other than tickets.

35 - 3 = 32 (for the service fee)

So josiah has 32 dollars to spend on popcorn

32/5 = 6.4 but you cant have half a bag of popcorn so

6 bags
8 0
2 years ago
What are one of the multiples of 4.<br><br>A.1,2,4,12<br>B. 9,0,3,5<br>C.ahshhansbdhs​
saul85 [17]

Answer: a

Step-by-step explanation:

none of the answers in b are divisible by 4

6 0
3 years ago
Other questions:
  • (30 points) Please, if anyone can give me the answers to my Algebra 1b (semester two) cumulative exam, I'd be forever greatful e
    6·2 answers
  • Spila Motors Inc. earned income of $69,000 from its operating activities for a specified period. During the same period, it sold
    7·1 answer
  • PLEASE HELP ILL GIVE BRAINLY IF CORRECT
    8·1 answer
  • Tricia got a 6% raise on her weekly salary. The raise was $30 per week. What was her original salary?
    8·2 answers
  • What is the square root of 9
    14·2 answers
  • Mr. Grummage was dressed in a black frock coat with a stovepipe hat that added to his considerable height. His somber, sallow fa
    9·1 answer
  • Which measurements could NOT represent the side lengths of a right triangle? A. 12 in, 35 in, 37 in B. 10 in, 24 in, 26 in C. 4
    5·2 answers
  • I really need help on this question, thank you!
    5·1 answer
  • Priya has 5 pencils, each x inches in length. When she lines up the pencils end to end, they measure 34.5 inches. Select all the
    11·1 answer
  • Find the highest common factor<br>​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!