A line has slope 2 and y-intercept 5. Which equation represents the line?
Correct answer(s):
- y = 2x + 5
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Find an expression for the nth term of the arithmetic sequence: 8, 11, 14, 17, …
Correct answer(s):
- 3n + 5
Solve the inequality: -2x + 1 > -1.
Correct answer(s):
- x < 1
Evaluate 4x + 4y + 5 when x = -3 and y = 5.
Correct answer(s):
- 13
Expand and simplify: 2(8x + 2).
Correct answer(s):
- 16x + 4
A shop charges a fixed delivery fee of 27 taka plus 6 taka for each notebook. If the total cost is 51 taka, how many notebooks were ordered?
Correct answer(s):
- 4
Find x if 3x – 12 equals 0.
Correct answer(s):
- 4
For the expression 1/(x – -4), which value of x is not allowed?
Correct answer(s):
- -4
Which expression represents ‘five less than twice a number n’?
Correct answer(s):
- 2n - 5
A linear rule produces these values: x=2 gives y=3, x=3 gives y=7, x=6 gives y=19. Which rule matches the table?
Correct answer(s):
- y = 4x - 5
Select all expressions equivalent to 6x + 6.
Correct answer(s):
- 6(x + 1)
- 6x + 6
The sides of a rectangle are (9x + 2) cm and (8x + 7) cm. Which expression represents its area?
Correct answer(s):
- 72x^2 + 79x + 14
7 years from now, Rina’s father’s age will be 2 times Rina’s age. Rina is now 10. How old is her father now?
Correct answer(s):
- 27
Solve the proportion: 3/3 = 5/x.
Correct answer(s):
- 5
Expand: (a – 9)^2.
Correct answer(s):
- a^2 - 18a + 81
Simplify: a^8 ÷ a^5, where a ≠ 0.
Correct answer(s):
- a^3
A line has slope 1/2 and y-intercept -5. Which equation represents the line?
Correct answer(s):
- y = 1/2x - 5
Find an expression for the nth term of the arithmetic sequence: 8, 10, 12, 14, …
Correct answer(s):
- 2n + 6
Solve the inequality: -5x – 3 < -8.
Correct answer(s):
- x > 1
Evaluate -4x + 4y + 3 when x = -5 and y = -1.
Correct answer(s):
- 19