Week Day 15 1 Pam used the following process to find the

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Presentation transcript:

Week Day 15 1 Pam used the following process to find the y-intercept of the line described by the equation 2x – y = 11. Step 1 Subtract 2x from both sides. –y = –2x + 11 Step 2 Divide each side by –1. y = 2x – 11 Step 3 The y-intercept of y = mx + b is b. y-intercept is –11 According to Pam’s method, which expression gives the y-intercept of the line described by the equation ax + by = c? A. B. C. D.

Week Day 15 2 Which number serves as a counterexample to the statement below? A prime number plus one is not prime. A. B. C. D. 2 3 11 17

Week Day 15 3 The sum of the angle measures of a triangle is 180°. Two angles of a triangle measure 35° and 65°. What can you conclude is the measure of the third angle of the triangle? A. B. C. D. 80° 90° 100° It cannot be determined.

Week Day 15 4 What are the x- and y-intercepts of the graph of A. B. x-intercept: –2; y-intercept: 5 x-intercept: ; y-intercept: –2 x-intercept: 0; y-intercept: –2 x-intercept: 5; y-intercept: –2

Week Day 15 5 A system of equations is set up to determine how many pounds of hazlenut coffee and how many pounds of Colombian coffee were mixed together to make a blend. The total mixture was 20 pounds of coffee. Which of the following is not a possible solution to the system? A. B. C. D. (7, 13) (32, –12) (11, 9) (1, 19)