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.
5. 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 9.
Substitute x = 4: y = 2(4) + 1 = 9.
Please select an answer first.
Correct answer: B
The correct answer is 2.
Set y = 0: 3x - 6 = 0, so x = 2.
Please select an answer first.
Correct answer: C
The correct answer is 7.
Use y = -x + b and substitute (2, 5): 5 = -2 + b, so b = 7.
Please select an answer first.
Correct answer: D
The correct answer is .
The slope is 8/4 = 2. Using (-1, 2) gives 2 = -2 + b, so b = 4.
Please select an answer first.
Correct answer: A
The correct answer is Yes, because the slope between consecutive pairs is 2..
The slopes are (5 - 1)/(2 - 0) = 2 and (9 - 5)/(4 - 2) = 2.
Please select an answer first.
Correct answer: B
The correct answer is 12 units.
The side lengths are 3, 4, and 5, so the perimeter is 12 units.
Please select an answer first.
Correct answer: C
The correct answer is 15 square units.
The length is 5 and width is 3, so area = 15 square units.
Please select an answer first.
Correct answer: D
The correct answer is The point exactly halfway between the endpoints..
The midpoint averages the coordinates and divides the segment into two equal lengths.
Please select an answer first.
Correct answer: A
The correct answer is The output increases by 6 units for each one-unit increase in input..
Slope is the rate of change, or change in output divided by change in input.
Please select an answer first.
Correct answer: B
The correct answer is Coordinates and equations can describe geometric positions, distances, slopes, and transformations..
Coordinate geometry uses algebraic rules to analyze geometric figures and uses graphs to represent relationships.
