For Exercises 91−98, use the graph to solve the equation and inequalities. Write the solutions to the inequalities in interval notation. (See Examples 8−9)
91.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
College Algebra & Trigonometry - Standalone book
Additional Math Textbook Solutions
College Algebra (6th Edition)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
College Algebra (10th Edition)
Linear Algebra with Applications (2-Download)
Pre-Algebra Student Edition
Graphical Approach To College Algebra
- Solve algebraically and write interval notation for the answer.5x+10>=x+3(2-5x)arrow_forwardThe bar graph shows discretionary spending by full and part-time college students in some country from 2007 through 2013. The data in the graph can be modeled by the formula D=1.2x +1.6(x+40), where D represents discretionary spending among students, in billions of dollars, x years after 2007. According to the formula, how much money did college students spend in 2007? Does the model underestimate or overestimate the amount of discretionary spending displayed by the bar graph? By how much? Discretionary Spending Among Students $140- $120- 115 S100- 87 74 $80- 61 S60- $40 $20- 0- 2007 2009 2011 2013 The amount of money college students spent in 2007 according to the formula to the left is $ billion. (Type an integer or a decimal.) Does the model underestimate or overestimate the amount of discretionary spending displayed by the bar graph? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Type an integer or a decimal) O A. Overestimates…arrow_forwardThe graphing utility screen shows the graph of y = √(27 - 3x)2. Write and solve a quadratic inequality that explains why the graph only appears for -3 ≤x ≤3.arrow_forward
- Morgan is walking her dog on an 8-meter-long leash. She is currently 500 meters from her house, so the maximum and minimum distances that the dog may be from the house can be found using the equation |x – 500| = 8. What are the minimum and maximum distances that Morgan's dog may be from the house? O496 meters and 500 meters 500 meters and 508 meters 492 meters and 508 meters O496 meters and 504 meters OOOarrow_forward21. Distinguish between solving a polynomial equation and solving a polynomial inequality.arrow_forwardUse the graph to solve the equation and inequalities. Write the solutions to the inequalities in interval notation. a. 2x + 1 = -x + 4 b. 2x +1< -x + 4 c. 2x +12 -x + 4 (1,3). Y= 2x+1arrow_forward
- Quiz 4 13. An arrow is shot vertically upward at a rate of 220 feet per second. Use the projectile formula h(t) = -16t² + 220t, to determine when height of the arrow will be 400 feet. 14. Graph the function. Determine the vertex, x- and y-intercepts, domain, and range. f(x )= x2 + 7x + 6 15. Solve an inequality. Write solution in interval notation x2 + 8x s -12 MacBook Air DD 80 F5 F6 F7 F9 F10 F2 F3 F4 ! @ 23 2 4 6. 7 8. Q W R Y D F J K A 1] C V M command .. .- * 00 Barrow_forwardSolve 7x + 3 < 5x + 9. Show the graph of the solutions on number line.arrow_forwardLet Y represent the total cost of publishing a book (in dollars) let X represent the number of copies of the book printed. Suppose that X and Y are related by the equation Y = 15x + 1250. answer the question below. note that a change can be an increase or a decrease. for an increase, use a positive number. For a decrease, use a negative number. what is the cost to get started (before any books are printed ) ? what is the change in the total cost for each book printed?arrow_forward
- The graphing utility screen shows the graph of y = 4x2 – &r + 7. y = 4x - &r + 7 [-2, 6, 1] by [-2, 8, 1] a. Use the graph to describe the solution set of 4x? - 8x + 7> 0. b. Use the graph to describe the solution set of 4x - &x + 7 <0. c. Use an algebraic approach to verify each of your descriptions in parts (a) and (b).arrow_forwardSolve the inequalities.arrow_forward4v-6>18 or 2v+6 solution in interval notationarrow_forward
- Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtAlgebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal LittellGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
- Elementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice University