Question

What’s the slope of a tangent line at x=1 for f(x)=x2. We can find the slopes of a sequence of secant lines that get closer and closer to the tangent line. What we are working towards is the process of finding a “limit” which is a foundational topic of calculus.

240

likes
1198 views

Answer to a math question What’s the slope of a tangent line at x=1 for f(x)=x2. We can find the slopes of a sequence of secant lines that get closer and closer to the tangent line. What we are working towards is the process of finding a “limit” which is a foundational topic of calculus.

Expert avatar
Fred
4.4
118 Answers
To find the slope of the tangent line at x=1 for the function f(x)=x^2, we need to find the derivative of the function with respect to x.

The derivative of f(x)=x^2 can be found using the power rule, which states that the derivative of x^n (where n is any constant) is nx^(n-1).

Applying the power rule, we differentiate f(x)=x^2 as follows:

f'(x) = 2x^(2-1)
= 2x

Now, to find the slope of the tangent line at x=1, we substitute x=1 into the derivative function:

f'(1) = 2(1)
= 2

Therefore, the slope of the tangent line at x=1 for f(x)=x^2 is 2.

Answer: The slope of the tangent line at x=1 for f(x)=x^2 is 2.

Frequently asked questions (FAQs)
Question: What is the simplified form of ∛(7^2 × 2^5 × 3) + √(200) - √(98)?
+
Question: In a group of 10 people, how many ways can you choose 3 people to form a committee?
+
What is the SSS rule for congruence of triangles?
+
New questions in Mathematics
A normal random variable x has a mean of 50 and a standard deviation of 10. Would it be unusual to see the value x = 0? Explain your answer.
A software company incurs a cost of $50 per license sold plus $5,000 in fixed costs. How many licenses should you sell to minimize total costs?
A normally distributed population has a mean of 118 with a standard deviation of 18. What score separates the lowest 72% of the distribution from the rest of the scores?
90 divided by 40
Let I ⊂ R be a bounded and nonempty interval. Show that there are numbers a, b ∈ R with a ≤ b and I =[a,b] or I =[a,b) or I =(a,b] or I =(a,b)
Suppose X has a Poisson distribution, with a mean of 0.4. Determine the probability that x is at most 2.
Find the root of x^4-10x^ 5=0 using Newton's method, with a precision of the smallest positive root.
Perpetual annuities are a series of payments whose duration has no end. Explain how can we calculate them, if they have no end?
41/39 - 1/38
The equation of the straight line that passes through the coordinate point (2,5) and is parallel to the straight line with equation x 2y 9 = 0 is
What is 28 marks out of 56 as a percentage
Express the trigonometric form of the complex z = -1 + i.
17. A loan for $104259 is taken out for 10 years with an annual interest rate of 9.4%, compounded quarterly. What quarterly payment is required to pay the loan off in 10 years? Enter to the nearest cent (two decimals). Do not use $ signs or commas in the answer.
A 20-year old hopes to retire by age 65. To help with future expenses, they invest $6 500 today at an interest rate of 6.4% compounded annually. At age 65, what is the difference between the exact accumulated value and the approximate accumulated value (using the Rule of 72)?
The mean of 4 numbers is 5 and the mean of 3 different numbers is 12. What is the mean of the 7 numbers together? Produce an algebraic solution. Guess and check is acceptable.
4m - 3t + 7 = 16
For how long does the principal amount of €7,537 bring the same interest as the principal amount of €12,345 invested for 8 months? Interest calculation is simple and decursive.
-1/3x+15=18
Let A denote the set of all people who were alive in 2010. Let B denote the set of all real numbers. Let f assign, to each person in A, their weight during the year 2010. Is f a function? Explain in complete sentences.
f(x)= 9-x^2 find (f(x+h)-f(x) )/h