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CFA 5 8.EE.A, 8.EE.B, 8.EE.C Name:__________________________ STUDY GUIDE 1. What is the equation of a line that passes through the points (-2,4) and (0-8)? Write your answer in slope intercept form. Show your work. Answer: ______________________________ 2. 3. A wedding photographer charges a flat fee of $75 for weddings and an additional $50 per hour of shooting. Part A Write a linear equation to model the relationship between the number of hours of shooting and the total cost of photography services. Let x represent the number of hours and y represent the total cost. Equation: _________________________ Part B What is the rate of change and initial value of the function from Part A? Rate of Change: ______________ Initial value: _______________ 4. Graph the solution to y = 2x on the same coordinate plane. 5. Write the equation 2x + 7y = -28 in slope-intercept form. A. 7y = 2x – 28 2 B. y = 𝑥 + 4 7 7 C. y = 𝑦 − 4 D. y = 2 −2 7 𝑥−4 6. The y-intercept of the equation y = 7x – 5 is seven. A. True B. False 7. What is the slope of the line below? A. 2 B. C. D. 𝟐 𝟓 𝟓 𝟐 −𝟐 𝟓 8. Write the equation 14x + 2y = 48 in slope intercept form. A. y = -7x + 24 B. 2y = 14x + 48 1 C. x = 𝑦 − 24 7 D. y = 7x – 24 9. What is the y intercept of the equation 3x = 9y – 27? b = ________________ 10. Graph the following equation below: 2x + 2y = 10 1 11. Graph the following equation below: y = − 𝑥 + 3 2 12. Graph the following equation below: y = -2 13. Write the following equation in slope intercept form: y – 3 = 4(x – 2) Equation _________________________ Answer Key 1. y=-6x-8 2. A 3. A. Y=50x+75 B. 50, 75 4. * A graphed line that passes through the origin and is parallel to the graphed line. 5. D 6. B 7. B 8. A 9. -9 13. y = 4x + 1