act prep

What is the strategy of back solving in ACT Math?

Plugging answer choices into the original question formula to find the correct answer, starting with the middle/third answer choice.

What is the purpose of picking numbers in ACT Math?

To select small numbers when the answer choices are integers or when the question involves letter variables.

What does estimation in ACT Math involve?

Rounding numbers to make calculations easier and quicker, helping to determine whether an answer choice is reasonable.

What does translating math involve when answering word problems?

Finding keywords to understand what the problem is asking.

What is the formula for calculating averages in algebra?

A = T/N, where A is the average, T is the total sum of values, and N is the number of figures in a set.

What does the slope-intercept form of a line represent?

y = mx + b, where m is the slope and b is the y-intercept.

What is the distance formula in algebra?

d = √((x₂ - x₁)² + (y₂ - y₁)²).

What is the formula for the midpoint between two points in a coordinate plane?

M = ((x₁ + x₂) / 2, (y₁ + y₂) / 2).

What is the quadratic formula?

x = (-b ± √(b² - 4ac)) / 2a.

What is the Pythagorean theorem?

a² + b² = c².

What is the formula for the area of a rectangle?

A = lw, where l is length and w is width.

How is the circumference of a circle calculated?

C = 2πr, where r is the radius.

What is the formula for the volume of a cylinder?

V = πr²h, where r is the radius and h is the height.

What does SOHCAHTOA help remember in trigonometry?

sin(θ) = opposite/hypotenuse, cos(θ) = adjacent/hypotenuse, tan(θ) = opposite/adjacent.

What is an independent variable in science experiments?

The variable manipulated by the scientist.

What is a dependent variable in science experiments?

Changes in correlation to the independent variable.

What do constants refer to in scientific experiments?

Variables that stay the same throughout the experiment.

What is a control in scientific experiments?

Variables kept the same to ensure the experiment is fair.

What is the main characteristic of direct relationships in science?

When the independent variable increases, the dependent variable also increases.

What should you do when analyzing data before reading a question in the ACT Science section?

Analyze and annotate the data as needed.

What are trap answers in the ACT Reading section?

Answers that twist/over exaggerate details, are true but irrelevant, or contradict the question.

What is the time allocation for writing the ACT essay?

25-30 minutes to write.

What is necessary for a clear thesis in an ACT essay?

It must address complexity and potential implications.

What should transition sentences do in writing?

Smoothly move from one topic to another.

What is the general guideline for choosing answers in the ACT English section?

The right answer typically has the least amount of words.