University:
Missouri State University
Course:
MTH 103 | Intermediate Algebra
Academic year:

2019
Views:

48

Pages:

2
Author:

Kaiden Murphy

Acc Algebra 1 Unit 3: ADDITIONAL PQ2 Name: KEY Date: Period: ADDITIONAL "PRACTICE" QUIZ 2... Graphing Linear Equations Part 1: Solve each equation for the given variable. (NO DECIMALS!!!) y = - 1/6 * x + 3 11 y = (4a)/3 * x + (- 11 ^ 2) / 3 * z - 5(x + 6y) = - 90 - 5x - 30y = - 90 - 30.4/- 30 = (5x - 90)/- 30 Solve for y \rightarrow Solve for y→ - 3/5 * y = - 8x + 7 - 3/5 * y + 8x = 7 Part 2: Find the x and y-intercepts algebraically. No decimal answers. -36,0) 3) Find the x-intercept: x - y = - 36 4) Find the x-intercept: 5) Find the y-intercept: y = 13x 6) Find the y-intercept: Part 3: Graph the linear equation using a table of values. Use (-1, 0, 1) for your domain. 7) y = - 1/3 * x + 6 8) y = - 2/3 * (7.5 - 6x) y = - 5 + 4x X work work y -1 - l_{1} * 6y_{3} ) 6 * y/3 -5+4(-1) (x, y) 9 (- 1, - 9) - y_{3} * (0) + 6 (- 1/3 * (- 1) + 6)/2 6 (0, 6) -5+4(0) - 3/3 * (1) + 6 523 ) 1 5 (0, - 5) -1 (1, - 1) Part 4: Graph each equation using Slope-Intercept Form (SIF). 9) y = - 3/2 * x + 8 10) f(x) = 7 - x 11) h(x) = 2x - 4 2/5 * y = 24x - 16 - 11/7 * x + 1/11 * y = 5 - 5 + 4(1) (x, y) (3, 0)/(0, 0) (0,55) 4 12) - 8 + 9y = - 17 y = - 1 ← 13) x - 7 = - 3.5 x = 3.5 14) - 6x = y Part 5: Multiple Choice. B. C. 15) 16) D. B. 17) - 2 = 2/3 * (4) - 2 -2-233-2 Which point does NOT lie on the graph of y = 2/3 * x - 2 ? A. (-3,-4) B. (4,-2) C. (0,-2) D. (3.0) -2 ne 2/3 You have $15 gift card to a coffee shop. Each time you go there, you get chai tea for $1.25. The equation y = - 1.25x + 15 represents how much you have left on the gift card after x visits. How many chai teas can you purchase before the balance on your gift card runs out? A) 6 B) 10 C) 12 0 = - 1.25x + 15 (- (5))/(7ir) = 7.25/(- r * 0.27) D) You have $175 to spend on x hamburgers and y pretzels for your town run to Basically Burger and Taste of Philly. Each hamburger costs $2 and each pretzel costs $3.5. Write an equation in slope-intercept form. (Decimals are acceptable) A) 3.5x + 2y = 175 B) 2x + 3.5y = 175 (3.5y)/7.5 * y = -2xF 7.5 17x 7.x y = - 0.57x 2x + 3.5y = 175 \\ -2x aligned C) y = - 1.75x + 87.5 D) y= - 0.57x +50 rfloor Determine the coordinates of the y-intercept of - 2y - 5x = - 10 A) \{0, - 5\} B) (0,5) C) (5,0) 미 ( 5,0) 19) A climber is on a hike. After 2 hours, he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change for the climber? J sim5 (- 2gamma)/- 2 = - 10/- 1 18) Part 6: Short Answer. (2,400) (6,700) Response: m = (700 - 400)/(6 - 2) = 300/4 * 75 75 ft per hour 20) The equation y = 15x + 95 models the cost of a school banquet for each person attending, where, y, represents the total cost and, x, represents the number of people attending. What does the slope represent? What does the y-intercept represent? Response: Slope.$15 (TOTAL COST PER PERSON) Y-intercept... $95 (FLAT FEE THAT IS ADDED TO OPE