Graphing Lines Quizizz

Write the equation for the line in slope-intercept form.

Answer explanation

The question asks for the equation of a line in slope-intercept form. The correct answer is 'y=4x+3'. In this equation, the slope of the line is 4 and the y-intercept is 3. This means that the line crosses the y-axis at 3 and for every unit increase in x, y increases by 4. None of the other options match this description.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Write the equation of the line.

Answer explanation

The question asks for the equation of a line. The correct answer is 'y=-3x-3'. This is because the equation of a line is typically written in the form y=mx+b, where m is the slope and b is the y-intercept. In this case, the slope is -3 and the y-intercept is -3.

Which equation matches the graph?

• y = 2x

• y = 1x + 4

• y = 2x - 3

Answer explanation

The correct equation for the graph is 'y = 1/4x + 2'. This equation represents a linear function with a slope of 1/4 and a y-intercept of 2. The other options do not match the graph as they have different slopes and y-intercepts.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What is the equation for this line?

Answer explanation

The question asks for the equation of a line. The correct answer is 'y=-5/6+3'. This equation represents a line with a slope of -5/6 and a y-intercept of 3. The other options are incorrect as they either have different slopes or y-intercepts.

What is the slope in the equation:  y=4x+3

• 3

• 4x

• 4

• x

Answer explanation

In the given equation, y = 4x + 3, the slope is the coefficient of the x term. In this case, the coefficient is 4, which is the correct choice among the given options. The slope represents the rate of change of y with respect to x.

Tags

CCSS.8.EE.B.5

What is the y-intercept in the following equation:  y=-4x-5

• -4

• -4x

• 5

• -5

Answer explanation

In the given equation, y = -4x - 5, the y-intercept is the value of y when x = 0. By substituting x = 0, we get y = -4(0) - 5, which simplifies to y = -5. Therefore, the y-intercept is -5.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Which of these lines has a slope of -3?

• A

• B

• C

• D

Answer explanation

The question asks which line has a slope of -3. The correct choice is option B. A line with a slope of -3 will have a steep downward incline from left to right, and option B represents a line with that characteristic.

Tags

CCSS.8.EE.B.5

What is the y-intercept of this graph?

• (0,1)

• (0,-2)

• (0,0)

• (0,3)

Answer explanation

The y-intercept of a graph is the point where the line crosses the y-axis. In this case, the correct choice is (0,1), which means the graph intersects the y-axis at the point where y equals 1. This is the correct answer because it satisfies the definition of a y-intercept.

Find the slope of the line.

• 1/2

• -1/2

• 2/1

• -2/1

Answer explanation

The slope of a line is a measure of its steepness. In this question, the correct answer is '1/2'. This means that for every one unit the line moves horizontally (to the right), it moves half a unit vertically (upwards). This is less steep than a slope of '2/1', and not downward sloping like '-1/2' or '-2/1'.

Tags

CCSS.8.EE.B.5

Find the slope

• -5/3

• -3/5

• 5/3

• 3/5

Answer explanation

The question asks to find the slope. The correct answer is '-5/3'. This is because the slope is a measure of the steepness of a line, or a section of a line, connecting two points. In this case, the slope is negative, indicating a downward slope from left to right.

Tags

CCSS.8.EE.B.5