For the function below, what is the slope when x < -1 f(x) = |10x+10| + 12x + 2

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.1: Graphing Quadratic Functions
Problem 75PFA
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For the function below, what is the slope when x < -1
f(r)%3D|10x+ 10| + 12x + 2
Transcribed Image Text:For the function below, what is the slope when x < -1 f(r)%3D|10x+ 10| + 12x + 2
Police use the formula:
v = V20L
to estimate the speed of a car, v, in miles per hour, based on the length, L, in feet, of its skid
marks when suddenly braking on a dry, asphalt road. At the scene of an accident, a police
officer measures a car's skid marks to be 147 feet long. Approximately how fast was the car
traveling? Round your answer to the nearest tenth (one decimal place) of a unit.
Answer: The car was traveling at approximately
miles per hour.
Transcribed Image Text:Police use the formula: v = V20L to estimate the speed of a car, v, in miles per hour, based on the length, L, in feet, of its skid marks when suddenly braking on a dry, asphalt road. At the scene of an accident, a police officer measures a car's skid marks to be 147 feet long. Approximately how fast was the car traveling? Round your answer to the nearest tenth (one decimal place) of a unit. Answer: The car was traveling at approximately miles per hour.
Expert Solution
Step 1

Given function is 

f(x) = 10x+10+12x+2

If x<-1 , then 10x+10=-(10x+10) .

 

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