![ryvergoss](/avatars/4152.jpg)
ryvergoss
15.10.2019 •
Mathematics
Which function has two x-intercepts, one at (0, 0) and one at (4, 0)?
f(x) = x(x − 4)
f(x) = x(x + 4)
f(x) = (x − 4)(x − 4)
f(x) = (x + 4)(x + 4)
Solved
Show answers
More tips
- A Animals and plants What Do Terriers Eat?...
- F Food and Cooking Discover the Benefits and Properties of Dates...
- C Computers and Internet Dynamically Assigned IP Address: What Is It and How Does It Work?...
- S Style and Beauty How to Get Rid of Acne: Scientifically Proven Methods...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
Answers on questions: Mathematics
- M Mathematics Help please this is for today too...
- M Mathematics The firefighter needs to drive 3 miles in 3 minutes. How fast should the firefighter drive?...
- M Mathematics Vijay missed 12 out of his last 16 free throws. Considering this data, how many of his next 20 free-throw attempts would you expect Vijay to miss? misses...
- M Mathematics Find the measure of the exterior angle....
- M Mathematics Can u guys help me the last one say triangle D...
- M Mathematics PLS HELPPPP MEEEE I NEED HELP ASAPPP WITH THIS QUESTION...
- M Mathematics 15. There is a 25% chance of rain tomorrow. The probability that the price of gold rises tomorrow is 37%. The probability that it rains AND the price of gold rises tomorrow is...
- M Mathematics What is the sequence of 8,2,0,2,8,18...
- M Mathematics Graph the ordered pair (-1, -3) and its reflection over the y-axis name the coordinates for the reflection...
- M Mathematics Need help please number 3 only...
Ответ:
2. So an x-intercept has coordinates (x,0)
3. If (0, 0) is an x- intercept, then f(0)=0
If (4, 0) is an x- intercept, then f(4)=0
4. Check:
a. f(x) = x(x − 4)
f(0)=0(0-4)=0,
f(4)=4(4-4)=4*0=0
so f(x) = x(x − 4) has x intercepts at (0,0) and (4,0)
b. f(x) = x(x + 4)
f(0)=0*(0+4)=0 but f(4)=4(4+4)=4*8=32, so not 0
c. f(x) = (x − 4)(x − 4)
f(4)=(4-4)(4-4)=0
f(0)=(0-4)(0-4)=(-4)(-4)=16 so not 0
d. f(x) = (x + 4)(x + 4)
f(0)=(0+4)(0+4)=4*4=16 so not 0
Ответ:
x is less-than-or-equal to 3
Step-by-step explanation:
4(3)+6 =18