I'm having a really difficult time solving this one calculus problem. It goes as follows: Find the equation of the normal to the curve at x=1. I'm not looking for an answer, but rather some guidance on how to approach and solve the problem.

Which system of linear inequalities is graphed? can somebody pleasssse

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

The length of the line segment ac is 8x-9 what is the value of x