Back to Tutor Intake Assessment: Expressions and Equations

8.EE Tutor Intake — Expressions and Equations

This short check helps your tutor see where to start. Work each problem on your own, without a calculator or notes. If you are unsure, give your best try — the goal is to find what to work on together, not to grade you.

Grade 8·15 problems·~14 min·Common Core Math - Grade 8·domain·ee
Work through problems with immediate feedback
A

Concepts

1.

Simplify 34363^4 \cdot 3^{-6} and write the result as a fraction
with a positive exponent. Which expression is correct?

2.

Consider the two equations x2=49x^2 = 49 and x3=8x^3 = 8.
Which statement correctly describes their solutions?

3.

A car travels at a constant speed. Its distance dd (in miles)
and time tt (in hours) are proportional, and the graph of dd
against tt is a straight line through the origin. The car goes
120 miles in 2 hours. What is the slope of the graph, in miles
per hour? Enter a number.

4.

A student solves a linear equation correctly and the equation
simplifies to 0=00 = 0. What does this tell you about the original
equation's solutions?

5.

Two lines are graphed on the same coordinate plane and cross at
the point (3,5)(3, 5). The lines are the graphs of a system of two
linear equations. What is the solution to the system?

B

Procedures

1.

Simplify (23)22425\dfrac{(2^3)^2 \cdot 2^4}{2^5} to a single power of 2,
then evaluate it. Enter the resulting whole number.

2.

Write the number 0.000370.00037 in scientific notation, in the form
a×10na \times 10^{n} where 1a<101 \le a < 10 and nn is an integer.

3.

Multiply (4×105)(3×106)(4 \times 10^5)(3 \times 10^6) and write the result in
proper scientific notation, in the form a×10na \times 10^{n} where
1a<101 \le a < 10.

4.

A line passes through the points (2,3)(2, 3) and (6,15)(6, 15).
Calculate the slope of the line. Enter a number.

5.

A line has slope m=2m = 2 and crosses the yy-axis at the point
(0,3)(0, -3). Which equation represents this line in the form
y=mx+by = mx + b?

6.

Solve for xx: 5x3=2x+125x - 3 = 2x + 12. Enter the value of xx.

7.

Solve for xx: 12(x+6)=2x3\dfrac{1}{2}(x + 6) = 2x - 3. Enter the value
of xx.

8.

Solve the system for xx and yy:
y=2x+1y = 2x + 1 and 3x+y=113x + y = 11.
Enter the solution as an ordered pair (x,y)(x, y).

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