ابدأ التدريب

مجال المحتوى

الجبر.

الجبر هو المجال الأكبر في SAT الرقمي، ويمثل ما يقرب من 35٪ من جميع الأسئلة.

تدرب على الجبر → ورقة المعادلات

المواضيع الفرعية

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.

المعادلات الأساسية

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)
رؤية ورقة المعادلات الكاملة →

نصائح الاختبار

  • 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.