grade 8 topics for quizbee

2. Give the mathematical
expression of the statement
"the ratio of a number x and
four added by two."
𝑥
4
+ 2
BACK

3. Simplify the rational
algebraic expression
𝒙𝟐−𝟒𝟗
𝒙+𝟕
.
𝒙 + 𝟕 BACK

4. Find the product of
(x-1)(x+3).
x2 + 2x −3 BACK

5. Express
𝟑𝒙𝒚
𝟏𝟔
●
𝟑𝟐
𝟓𝒙𝒚𝟐 in
simplest form.
6
5𝑦 BACK

6. In a rectangular
coordinate system, the
y coordinate is called
the ______________.
ordinate
BACK

7. Where does the point
(-5, 0) lie in the
coordinate plane?
x - axis
BACK

8. What is the slope of the
line if it rises from left to
right?
positive
BACK

9. Find the slope of the
line passes through
(-8, -1) and (-2, 2).
1/2
BACK

10. What is the Slope-
Intercept Form equation
of a linear equation in
two variables?
y = mx+b BACK

11. What is the equation of
a line whose slope is 3
with y-intercept -3?
Write your answer in
slope intercept form.
y = 3x-3 BACK

12. Find the factors of
a2 + 5a – 6.
(a-6) (a+6) BACK

13. What do you call a function
that can be written in the
form y = mx+b or f(x)= mx+b,
where m is the slope and b is
the y- intercept of the line?
Linear Function BACK

14. What is the slope of the
line whose equation is
2x – 6y = 5?
1/3 BACK

15. y = 2x - 10 BACK
What is the equation of
the line that passes
through (3, -4) and with
slope 2? Write your
answer in slope intercept
form.

16. Smaller number is 12, and
the bigger number is 17. BACK
Twice a number and thrice
a bigger number give a
sum of 75, but thrice the
smaller number is 19 more
than the bigger number.
Find the numbers.

17. If a car is in a good condition, then it
is safe for driving.
BACK
Give the conditional statement
given the following:
Hypothesis: A car is in a good
condition
Conclusion: it is safe for driving

18. If points lie in the same plane, then
then they are coplanar.
BACK
Give the converse of the “If-
then” form: If points are
coplanar, then they lie in the
same plane.

19. 4x2 – 12x + 9
BACK
The side of a square garden is
2x -3. Find its area.

20. 2
𝑦 + 3
BACK
Simplify:
𝟐𝒚−𝟏𝟒
𝒚𝟐−𝟒𝒚−𝟐𝟏

21. The son is 10 years old now while
Mother is 30 years old now.
BACK
Mother is thrice as old as her
son. Ten years from now,
Mother will be twice as old as
her son. How old are they
now?

22. y = -2x + 10
BACK
What is the Slope-Intercept
Form of the equation
2x + y = 10?

23. y = -
2
3
𝑥
BACK
Find the equation of the line
that passes through the origin
and has a slope of -2/3.

24. (4,-3,6,-2)
BACK
What are the range in the
following ordered pairs, (-1,4),
(-2,-3), (0,6) and (1,-2)?

25. (3,2)
BACK
Solve by the substitution
method:
3x+y=11
3x-2y=5
(Write your answer in an
ordered pair)

26. 9d2 + 4e2 + f2 + 12de + 6df + 4ef
BACK
Square the given trinomial:
(3d+ 2e + f)2

27. (2x + 2) by (2x + 2)
BACK
The area of a square garden is
4x2 + 8x + 4. What is the length
of its sides?

28. -
3
4
BACK
Determine the slope using the
given points: (6,0) and (2,3)

29. x + y = 4
BACK
Find the equation of the line
given two points:
(-1,5) and (1,3). Write your
answer in Standard form.

30. d – p ≥ 30
BACK
Write the mathematical
statement of: the difference
between the weight of Eric (d)
and Richard (p) is at least 30.

31. 7
BACK
What is the value of c in
(3x-1)(2x+3)= 6x2 + cx -3 ?