Memorizable Math 8th Grade Q3

What is the term for using inverse operations to isolate a variable?

• Solve

• Simplify

• Divide

• Reduce

Term for combining like terms or performing operations in an expression to reduce it to the fewest possible terms.

• expand

• graph

• solve

• simplify

Organize these options into the right categories.

Groups:

(a) m in y=mx+b

,

(b) b in y=mx+b

,

(c) None of these

• starting value

• where a line crosses the y-axis

• y-intercept

• ending point

• slope

• x-intercept

• rate of change

• initial value

• rise over run

Label the coordinate plane with the appropriate quadrant numbers.

a

b

c

d

I (one)

II (two)

III (three)

IV (four)

What is the correct method for identifying the x-intercept of a function or relation? More than one answer may be correct.

• On a graph, locate where the function or relation touches or crosses the origin.

• On a graph, locate where the function or relation touches or crosses the x-axis.

• In an equation, replace y with 0 and solve for x.

• In an equation, replace x with 0 and solve for y.

What is the correct method for identifying the y-intercept of a function or relation? More than one answer may be correct.

• On a graph, locate where the function or relation touches or crosses the origin.

• On a graph, locate where the function or relation touches or crosses the y-axis.

• In an equation, replace y with 0 and solve for x.

• In an equation, replace x with 0 and solve for y.

In the ordered pair (-3, 7), ​​ (a)   is the x value and ​ (b)   is the y value.

• 7
• -3
• 3
• -7
• 0
• 10

The expression 2x means...

• The square of the variable x
• The sum of 2 and the variable x
• The result of dividing the variable x by 2
• 2 times the variable x

• rational

• irrational

• whole number

• integer

• natural number

• rational

• irrational

• whole number

• integer

• natural number