12.What is the value of y when x = -3 in the relation y = 2x + 5?
A. -1
B. -4
C. -1
D. -2
13.What is the value of x when y = 11 in the relation y = 2x + 5?
A. 3
B. 6
C. 2
D. 3
Approximate 0.4059 to 2 significant figures. A. 0.406 B. 0.405 C. 0.41 D. 0.40 2.Factorize 81−16b2 A. (9−4b)(9+4b)B. (9+4b) 2 C. (4b−9)(4b+9) D. (9−4b)(9+4b) 3.Solve the simultaneous equations x + y = 2 and x – y = 1. A. x = -1, y = -1 B. x = -1, y = 1C. x = 1, y = 12D. x = 32, y = 1 2 4.Expand (x+4)(x−3 ) . A. 2x2+x−12B. x2 +x−12C.2x2+x−12D. x2 −x−12 5.If x is directly proportional to y and x = 4 when y = 12, find the value of x when y = 24. A. 4 B. 8 C. 12 D. 16 6.Solve the simultaneous x + 2y = 1, 2x + 5y = 4. A. x = -3, y = 2 B. x = 3, y = 2 C. x = 2, y = 5 D. x = -2, y = 5 7.Twice a certain number y is less than or equal to 6. Find the range of values of the number. A. y < 3 B. y > 3 C. y ≤3 D. y ≥ 3 8.Solve the equation x−52=x−1 3 . A. 10 B. 12 C. 13 D. 14 9.What is the place value of 7 in the number 526.97? A. 7 Hundred3 B. 7 Tens C. 7 Tenths D. 7 Hundredths 10.Find the square root of 1 20 4 . A. 254B. 412C. 214D. 1 2 3 11.Solve the equations x + y = 5, 2x – y = 4 simultaneously. A. x = 1, y = 3B. x = 2, y = 3 C. x = 3, y = 2D. x = 3, y = 4
Use the table below to answer questions 12 and 13 for the relation y = 2x + 5, for the values of x from -4 to 4
1 answer