Grade 8 Math MCAS Review

Grade 8 Math MCAS Review

LET’S SEE WHAT YOU REMEMBER!

Multiple Choice

REMINDER: 180 degrees is 2 turns. The size and shape of the object do not change.

• IMAGE A

• IMAGE B

• IMAGE C

• IMAGE D

Multiple Choice

REMEMBER: Similar figures will have the same SHAPE but not the same SIZE.

• 30 degrees

• 45 degrees

• 60 degrees

• 90 degrees

Multiple Choice

SOLVING EQUATIONS: What steps would you take to solve this equation?

• Add 5 to both sides. Then divide both sides by 4.

• Divide both sides by 4. Then add 5 to both sides.

• Subtract 5 from both sides. Then multiply both sides by 4.

• Multiply both sides by 4. Then subtract 5 from both sides.

Multiple Choice

Which of the following linear relationships has the greatest rate of change?

REMEMBER:

RATE OF CHANGE = SLOPE

• A

• B

• C

• D

Multiple Choice

 $\pi r^2h$  In this question, you just need to multiply the height by the radius squared due to the way they have presented the answers. 

•  $15\pi$  

•  $30\pi$  

•  $45\pi$  

•  $60\pi$  

Multiple Choice

Similar figures are proportional. What is the length of side r?

• $r=4.5$

• $r=6$

• $r=4$

Multiple Choice

The standard form of a number means the “regular” number. In other words, write it without exponents. If the exponent is positive, move the decimal to the right.

• 20,300,000,000

• 203,000,000,000

• 2,030,000,000,000

• 20,300,000,000,000

Multiple Choice

An irrational number does not have a decimal that repeats or terminates (ends). Which one is an irrational number?

•  $\sqrt{0}$  

•  $\sqrt{3}$  

•  $1.\overline{36}$  

•  $-0.19$  

Multiple Choice

If you graph a linear function it will be a line. Linear functions do not have exponents greater than 1!

• $y=\frac{x}{12}$

• $y=\frac{1}{2}x^2$

• $y=3^x$

• $y=x\left(x+3\right)$

Multiple Choice

A RIGHT TRIANGLE means this is a Pythagorean Theorem problem! What is the value of x?

Remember to identify the hypotenuse (side C) so you set up the equation correctly.

• 17.5

• 25

• 35

• 37.5

Multiple Choice

A translation is a “slide.” You do not turn (rotate) the object. What are the new coordinates of point K after a translation 2 units up and 5 units to the right?

• (-1, 4)

• (1, 2)

• (2, 1)

• (4, -1)

Multiple Choice

Determine the slope (rate of change) per month.

• $20

• $30

• $80

• $100

Multiple Choice

A “slanted” line on MCAS means they want you to draw a right triangle and use the Pythagorean Theorem! Do not try to count diagonally across the boxes! What is the distance?

• 8 miles

• 10 miles

• 12 miles

• 14 miles

Open Ended

SYSTEM OF EQUATIONS

Amy and Simon each bought a pair of shorts and some T-shirts. Each pair of shorts cost the same amount, and each T-shirt cost the same amount.

Amy paid $60 for 1 pair of shorts and 2 T-shirts.

Simon paid $75 for 1 pair of shorts and 3 T-shirts.

What was the cost, in dollars, of 1 pair of shorts?

Multiple Choice

Sometimes you need to extend the table of values!

What is the value of y when x is 4?

• 1

• 2

• 3

• 4