![alejosy50](/avatars/6964.jpg)
alejosy50
15.12.2020 •
Mathematics
Bea is asked to graph this system of equations:
8x - 6y=3
-3y + 4x + 4
How many times will the lines intersect?
Solved
Show answers
More tips
- F Family and Home Do You Really Need a Playpen for Your Child?...
- F Food and Cooking Do Aphrodisiacs Really Work? Separating Fact from Fiction...
- C Computers and Internet Log-in: what is it and why do you need it?...
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
Answers on questions: Mathematics
- M Mathematics Sam spends twice as much on rent. he spend 1650 on rent and food last month. how much was sams rent...
- M Mathematics Ginny and Georgia fans out there?...
- M Mathematics Algebra I Graphing Project The purpose of this project is to discover how different values in place of m and b in slope-intercept forma related to how the graph of the...
- M Mathematics A solid with a surface area 8 square units is dilated by a scale factor of k to obtain a solid with surface area A square units. Find the value of k which results in an...
- M Mathematics The National Oceanographic and Atmospheric Association (NOAA) has provided data for global temperature changes from the 20th century average temperature of 13.9ᵒC. The...
- M Mathematics Describe the locus in space. points 5 cm from a point c Select one: a. a sphere of radius 5 cm, centered at C O b. a circle of radius 5 cm, centered at C c. an endless...
- M Mathematics if the expression square root 16x^3y divided by 2x^2y is written in the form ax^by^c then what is the product of a b and c...
- M Mathematics Solve the missing side length...
- M Mathematics In ΔOPQ, the measure of ∠Q=90°, PO = 85, QP = 77, and OQ = 36. What is the value of the sine of ∠O to the nearest hundredth?...
- M Mathematics A baker makes muffins that serve 1 person each. For a party, the baker is asked to make a large muffin in the shape as the individual muffins that will serve 100 people....
Ответ:
The lines will not intersect, because this system has no solutions
Step-by-step explanation:
Ответ:
see below
Step-by-step explanation:
A. f(x) = 4x^2 - 7x - 15
We need the numbers to multiply to- 15
1*15 and 3*5
One of the terms multiplies by 4 (or 2)
Try 4 first
4*-3 +5 = -7 That works
-3+5 = -15
f(x) = (4x+5)(x-3)
B. We want the x intercepts so set equal to 0
0 = (4x+5)(x-3)
Using the zero product property
0 = 4x+5 x-3 =0
-5 = 4x x=3
-5/4 =x x=3
C End behavior
Let x be negative infinity
The function is dominate by 4x^2
f(-∞) = 4 ( -∞) ^2 = 4 (∞) = ∞
At negative infinity the functions goes to infinity
Let x be infinity
The function is dominate by 4x^2
f(∞) = 4 ( ∞) ^2 = 4 (∞) = ∞
At infinity the functions goes to infinity
Part D:
We know the zeros at 3 and -5/4
We know the vertex is at halfway between the zeros
(3 -5/4) /2 = 7/4 /2 = 7/8
Since the parabola opens up (The coefficient of the x^2 term is positive), we know we have a minimum.
f(7/8) = 4 (7/8)^2 -7(7/8) -15 = 4(49/64) -1/8 -15 =-289/16
We know the minimum the zeros and the end behavior, we can graph the functions