These Grade 9 Math practice tests cover the coordinate plane, quadrants, axes, ordered pairs, distance, midpoint, slope, equations of lines, intercepts, parallel and perpendicular lines, reflections, rotations, translations, dilations, and coordinate-plane geometry applications.
Read each ordered pair as (x, y), preserve positive and negative signs, choose the appropriate coordinate formula, and check the result on a graph or in the original geometric context.
For more Grade 9 Math practice, return to the Grade 9 Math category.
4. Test
Practice Grade 9 Math questions about the coordinate plane, quadrants, distance, midpoint, slope, lines, transformations, dilations, and coordinate geometry applications.
Choose the best answer. Read coordinates in order, apply formulas carefully, preserve signs, and connect algebraic rules to geometric positions and measurements.
Please select an answer first.
Correct answer: A
The correct answer is (4, 3).
Add 3 to x and subtract 2 from y: (1 + 3, 5 - 2) = (4, 3).
Please select an answer first.
Correct answer: B
The correct answer is (2, 3).
Reflection across the x-axis changes the sign of y only.
Please select an answer first.
Correct answer: C
The correct answer is (4, 1).
Reflection across the y-axis changes the sign of x only.
Please select an answer first.
Correct answer: D
The correct answer is (-3, 2).
A 90-degree counterclockwise rotation maps (x, y) to (-y, x).
Please select an answer first.
Correct answer: A
The correct answer is Distance and angle measure..
A translation is a rigid transformation, so lengths, angles, area, and shape are preserved.
Please select an answer first.
Correct answer: B
The correct answer is A reflection..
Reflections preserve distance and angle measures, while dilations and stretches generally change size.
Please select an answer first.
Correct answer: C
The correct answer is (6, -2).
Multiply both coordinates by 2: (2 × 3, 2 × -1) = (6, -2).
Please select an answer first.
Correct answer: D
The correct answer is 12.
Lengths are multiplied by the scale factor: 4 × 3 = 12.
Please select an answer first.
Correct answer: A
The correct answer is 4.
Area scales by the square of the scale factor: 2 squared = 4.
Please select an answer first.
Correct answer: B
The correct answer is 6 square units.
The base is 4 and height is 3, so area = 4 × 3 / 2 = 6.
