Month: April 2014

Problem 238 Use the graph of y = -4x + 5 as shown on the right to find the value of y when x = 1.       Solution…

Problem 237 The Political Noise Problem. The amount of background noise is important to television news reporters. One station developed the formula showing the noise level in decibels (N) as…

Problem 236 State the solutions, or estimated solutions, to the given quadratic equation by examining the graph of the related quadratic function. The equation: 2×2 – 3x – 4 =…

Problem 235 Solve the quadratic equation below using any technique you wish. Name the technique. Show your work and check. -4×2  = 0   Solution   Technique – inspection x=0…

Problem 234 Solve the following linear equation using any technique developed in this section. Name the technique and show your work including the check. + 6 = – 12  …

Problem 233 Give five ordered pairs that make each equation true. Y = 20 + Solution   (0, 20) , (3, 21), (-3, 19) , (6, 22) , (-6,18)

Problem 232 Use the information in problem 46 to estimate the year the set is worth 1500 x = 22 So year will be 1971 +22 = 1993  

Problem 231 The graph shows the relationship between the number of years (t), that one owns a complete set of collectible baseball cards, from 1971 to 1995, and the value,…

Problem 230 a) Is the relationship shown in the table below linear? b) Tell how you decided. c) If the relationship is linear, write its equation.   X 5 10…

Problem 229 Use the information in the table to compute the value of b in the equation:  y= – x + b. Then use that value to complete the table.…