8th Grade MATH

Factoring,Polynomials

100

What does FOIL stand for?

First, Outer, Inner, Last

200

(x-4)(x+3)

x²-x-12

300

Factor: x²+11x+24

(x+3)(x+8)

400

Factor: 4x³+8x²+ 16x

4x(x²+2x+4)

500

3y³-24y²+45y

3y(y-5)(y-3)

Linear Equations, Slope

100

What is the equation for a line?

y = mx + b

200

What do m and b stand for in the equation of a line?

m= slope

b= y intercept

300

What is the equation for finding slope?

(y₁-y₂)/(x₁-x₂)

400

Which direction does a slope of -1/4 go?

Down 1, right 4 (left to right)

500

What is the slope of 2y - 3 = x + 5 ?

¹/₂

Decimals, Fractions, Percents

100

What is 3/8 in decimal form?

0.375

200

What is 11/44 in decimal form?

0.25

300

What is the closest whole number to the square root of 53?

7

400

What is the square root of 0.64? (there are two answers)

0.8 and -0.8

500

(3.2 x 10⁶) / 2 x 10⁴

1.6 x 10²

Exponents

100

When multiplying numbers with the same base but different exponents, you ---- the exponents.

Add

200

When dividing numbers with the same base but different exponents, you ---- the exponents.

subtracting

300

When something is raised to the power of 0, it equals ?

1

400

When a value with an exponent is raised to a higher power, you ----- the exponents.

Multiply

500

What happens when there are negative exponents?

Reciprocal

Geometry

100

How many degrees are on a line?

180

200

What kind of triangle has one angle over 90 degrees?

Obtuse

300

Using the Pythagorean theorem, if one side is 3 and the other is 4, what is the measurement of the third side?

5

400

When a transversal crosses a pair of parallel lines, what are the angle relationships that are congruent to each other?

Alternate (interior/exterior), corresponding

500

What is the area of a circle with a diameter of 12?

36pi