अभ्यास शुरू करें

सामग्री क्षेत्र

बीजगणित.

बीजगणित Digital SAT Math में सबसे बड़ा क्षेत्र है, जो सभी प्रश्नों का लगभग 35% है।

बीजगणित का अभ्यास करें → सूत्र शीट

उप-विषय

01

Linear equations in one variable

Solving equations of the form ax + b = c, including equations with fractions and variables on both sides.

02

Linear equations in two variables

Slope, intercepts, slope-intercept form, point-slope form, standard form, and contextual interpretation.

03

Systems of two linear equations

Substitution and elimination methods. Recognizing no-solution and infinite-solution cases.

04

Linear inequalities

Solving and graphing inequalities in one and two variables. Systems of linear inequalities.

05

Interpreting linear functions

Reading slope and intercept from context, identifying linear vs. non-linear models from tables and graphs.

मुख्य सूत्र

y = mx + b (slope-intercept form)
y − y₁ = m(x − x₁) (point-slope form)
m = (y₂ − y₁) / (x₂ − x₁) (slope)
Ax + By = C (standard form)
New = Original × (1 ± r) (percent change)
पूरी सूत्र शीट देखें →

परीक्षा के सुझाव

  • Always check: does the question want the value of x or an expression like 2x + 1?

  • When given a word problem, define your variable before writing the equation.

  • For systems, elimination is often faster than substitution when coefficients align.

  • On the SAT, "no solution" means parallel lines; "infinite solutions" means the same line.