NYS Math 8 Assessment Practice

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

This graph shows the relationship between the height of a plant, in inches, and the time, in months, that it grows.

Which of the following statements is true?

• From 4 months to 8 months, the height of the plant doubled.

• Each month, the plant grows 2 inches.

• The plant was 6 inches when it was planted.

• In 10 months, the height of the plant will be 20 inches

Tags

CCSS.HSF.LE.B.5

Parallel lines l and m are intersected by transversal t as shown below. If angle 3 measures 75°, what is the measure of angle 7?

• 15°

• 75°

• 105°

• 180°

Answer explanation

Angle 3 and angle 7 are corresponding angles as they are on the same side of the transversal. Therefore, angle 7 also measures 75°.

Tags

CCSS.8.G.A.5

The slope of a line is -3 and the y-intercept is (0, 4). What is the equation of the line in slope-intercept form?

Answer explanation

The point (0,4) is on the y-axis, so the y-intercept is 4.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Answer explanation

To get y by itself, we subtract 3x from both sides of the equation

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Which transformations could have been used to map Figure A onto Figure B?

• dilation, translation

• dilation, reflection

• reflection, rotation

• translation, rotation

Answer explanation

Dilation because the size of the image is different from that of the pre-image. Translation because it 'slides' over (no rotating or reflecting since the orientation of the shape is unchanged).

Tags

CCSS.8.G.A.3

Which of the following represents the slope of a line containing the points (2, -4) and (4, -1)?

Answer explanation

The slope formula is (y2 - y1) / (x2 - x1). Substituting the given points, we get (−1 - (−4)) / (4 - 2) = 3 / 2, which represents the slope of the line.

Tags

CCSS.8.EE.B.5

Simplify

(2m⁴)(5m²)

•  10m⁶

• 10m⁸

• 7m⁶

• 7m⁸

Answer explanation

To simplify, multiply the coefficients (2*5) and add the exponents (4+2) to get 10m^6.

Tags

CCSS.HSA.APR.A.1

What type of relationship is shown in the scatter plot above?

• positive

• negative

• skewed

• no relationship

Answer explanation

The scatter plot shows a negative relationship between the variables, indicating that as one variable increases, the other decreases.

Tags

CCSS.HSS.ID.B.5

Triangle Q’R’S’ was the result of a transformation on triangle QRS, centered at the origin, both shown above.

Describe the transformation: 

• Dilation by a scale factor of 3 

•  Translation 3 units to the right 

•  Rotation of 90° about the origin 

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2