Graphing Lines Using Intercepts Quiz

What is the purpose of using X and Y intercepts in graphing a line?

• To find the midpoint of the line

• To determine the slope of the line

• To identify where the line crosses the axes

• To calculate the area under the line

How do you convert the equation 8x + 4y = 80 to slope-intercept form?

• Divide the entire equation by 8

• Add 8x to both sides

• Subtract 4y from both sides

• Subtract 8x from both sides and divide by 4

What is the Y-intercept of the equation y = -2x + 20?

• -2

• 20

• 8

• 0

What is the equation of a line in slope-intercept form?

• y = ax + c

• x = my + b

• ax + by = c

• y = mx + b

In the equation y = -13x + 5, what is the X-intercept?

• (0, 5)

• (5, 0)

• (15, 0)

• (0, 15)

What does the point (2, 0) represent in the equation y = -3x + 3?

• The Y-intercept

• The midpoint

• The X-intercept

• The slope

How do you find the X-intercept of the equation 6x + 2y = 230?

• Multiply the entire equation by 2

• Divide the entire equation by 6

• Set y to 0 and solve for x

• Set x to 0 and solve for y

What does the X-intercept of 38.33 in the equation 6x + 2y = 230 signify?

• 38.33 sandwiches and no drinks

• 38.33 drinks and no sandwiches

• A slope of 38.33

• A total cost of $38.33

What is the significance of the Y-intercept in a real-world context?

• It shows the maximum number of items that can be purchased

• It indicates the total cost of all items

• It represents the number of items bought when the other is zero

• It determines the slope of the line

In the context of sandwiches and drinks, what does the point (0, 115) represent?

• 115 sandwiches and no drinks

• 115 drinks and no sandwiches

• A total cost of $115

• A slope of 115