Chap. 5 Review Jeopardy SlopeDirect Variation + Slope-InterceptStandard FormParallel Perpendicular Line of Fit 10 20 30 40 50.

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Presentation transcript:

Chap. 5 Review Jeopardy SlopeDirect Variation + Slope-InterceptStandard FormParallel Perpendicular Line of Fit

What is the slope of the points (-3, 4) and (0, 2)

Find the slope of the points (9, 8) and (9, -2)

Find the slope of the points (5, -8) and (-3, -8)

Find the value of r so that the line through (-3, 5) and (r, 6) has a slope of 5/6

Find the value or r so that the line through (r, 7) and (8, r) has a slope of 4/5.

What is the equation for direct variation?

If you can paint 12 feet of a fence in 10 minutes, how many feet can you paint in a half hour?

Graph y = -3/5x

Graph x = 5

In 1995, MusicMart sold 12,000 CDs. 5 years later, they sold 14,550 CDs. What is the rate of change in the number or CDs sold?

Write in slope-intercept form: Has a slope of 3/2 and passes through (4, -2)

Write in slope-intercept form: Passes through (3, 2) and (-1, 4)

Write in slope-intercept form: Is horizontal and passes through (5, 6)

Write in slope-intercept form: Is parallel to the y-axis and has an x-intercept of -4

Write in slope-intercept form: Has an x-intercept or -4 and a y-intercept of -6

Write in standard form: -3/4x + y = 2

Write in standard form: Passes through (3, -4) and (-1, 3)

Write in standard form: Slope is -2/3 and passes through (2, 2)

Write in standard form: y = -1/2(x + 1)

Write in Standard form: y + 3 = -1/3(x – 10)

Write the slope-intercept equation of a line that is parallel to 4x – 7y = 5 and passes through (0, 2)

Write the slope-intercept equation of a line in slope-intercept form that is perpendicular to 4y = 2x + 8 and passes through (-10, 5)

Write a slope-intercept equation of the line that is perpendicular to the y-axis and passes through (-4, 5)

A buffet restaurants charges $14 for your meal and $1.10 per refill for any additional refills. Write a linear equation that models this situation.

A cell phone company charges $14.50 per month with a charge of $0.50/minute for additional minutes. Write a linear equation that models this situation.