WEEK 1

DONE Unit 2: Verb Agreement

1 Topic | 3 Quizzes
DONE Unit 3: Punctuation

3 Topics | 3 Quizzes
Unit 4: Apostrophes

2 Quizzes
DONE Unit 6: Using Desmos

3 Quizzes
Unit 7: Ratios and Conversions

2 Quizzes
DONE Unit 8: Slope Intercept

3 Quizzes
DONE Unit 10: Line Graphs and Bar Graphs

3 Quizzes
DONE Unit 11: Scatterplots

3 Quizzes
WEEK 2

DONE Unit 12: Words in Context

3 Quizzes
DONE Unit 13: Passage Summarization

3 Quizzes
DONE Unit 14: Pronouns

3 Quizzes
DONE Unit 15: Transition Words and Phrases Part 1

1 Topic | 3 Quizzes
DONE Unit 16: Word Choice

3 Quizzes
Unit 17: Linear Word Problems

2 Topics | 2 Quizzes
Unit 18: Transforming Equations

1 Topic | 2 Quizzes
DONE Unit 19: Systems of Linear Equations

1 Topic | 3 Quizzes
DONE Unit 20: Systems of Inequalities

1 Topic | 3 Quizzes
Unit 21: Systems Word Problems

2 Quizzes
WEEK 3

DONE Unit 22: Figures and Tables

3 Quizzes
Unit 23: Author’s Objective

1 Topic | 2 Quizzes
Unit 24: Misplaced Modifiers

2 Quizzes
DONE Unit 26: Statistics

1 Topic | 3 Quizzes
DONE Unit 27: Average from a Table

3 Quizzes
Phoenix Unit 28: Probabilities

2 Quizzes
Phoenix Unit 29: Percentages

1 Topic | 2 Quizzes
Unit 30: Angle Problems

1 Topic | 2 Quizzes
Unit 31: Circle Basics

1 Topic | 2 Quizzes
Unit 32: Triangles

2 Quizzes
WEEK 4

Unit 33: Accomplish the Goal

1 Topic | 2 Quizzes
Unit 35: Command of Evidence

2 Quizzes
Unit 36: Parabolas and Factoring

2 Topics | 2 Quizzes
Unit 37: Non-Linear Systems

1 Topic | 2 Quizzes
Unit 38: Quadratic and Discriminant

2 Quizzes
Unit 39: Zeros in Quadratics

2 Quizzes
Unit 40: Center Radius Form of a Circle

2 Quizzes
Unit 41: SohCahToa

2 Quizzes
WEEK 5

Unit 42: Inferences

2 Quizzes
Unit 43: Complete the Text

2 Quizzes
Unit 44: Dual Passages

2 Quizzes
Unit 45: Functions

1 Topic | 3 Quizzes
Unit 46: Functions with Coordinate Box

1 Topic | 2 Quizzes
Unit 47: Exponents and Radicals

1 Topic | 2 Quizzes
Unit 48: Constants

1 Topic | 2 Quizzes
Unit 49: Surveys and Studies

2 Quizzes
WEEK 6

Unit 51: Equal Polynomials

2 Quizzes
Unit 52: Exponential Growth and Decay

2 Quizzes
Unit 53: Area and Volume

2 Quizzes
Unit 54: Absolute Value

2 Quizzes
Unit 55: Box Plots

2 Quizzes
Unit 56: Polynomial Graphs

2 Quizzes
Unit 57: Translations

2 Quizzes
Unit 58: Vertex Form of a Parabola

2 Quizzes
Unit 59: Creative Geometry

2 Quizzes
EXTRA

Logical Comparisons

2 Quizzes
You may be given a graph and asked a question that requires know the equation of a line.

Example:

Where will the line shown in the graph above intersect the x-axis?

A) -5.5

B) -5

C) -4.5

D) -4

**Strategy****:**

**To find the equation of a line from a graph, you have two options:**

*2 coordinate method***: Find two coordinate points, and then use those coordinate points to find the equation of the line. You should have practiced this in the previous unit.***Graph method:*The second method involves visually determining the slope and y-intercept.

Since the slope of a line is simply **rise over run**, we can trace with our pencils–starting at the *y*-intercept of the line–up 2 units and over 1 unit (note the different scales for the grid lines on the graph for the *x* and *y* axes – this is a common SAT trick). Therefore, our slope is \(\frac21\). Now by identifying the point where the line intersects with the *y*-axis, we can determine that the *y*-intercept, or \(b\), is positive 10. We now have our linear equation:

$$y=2x+10$$

The question asks us where the line will intersect with the *x*-axis. Where a line crosses the *x*-axis, the *y* values will always be zero, so we plug zero into our equation and solve for *x*:

$$0=2x+10\\-10=2x\\x=-5$$

The answer is B).

As noted in the example, watch out for different scales on the axes, or gridlines being two units instead of one as you might expect.

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