Compare two functions given in different ways

Question 1

Hana's savings: y = 8x + 6. Kofi's savings (x = weeks): weeks 0, 1, 2, 3 → 5, 10, 15, 20. Who saves more per week?

• A. Hana
• B. Kofi

Question 2

Function A: y = −4x + 8. Function B is a line through (1, −1) and (2, −5). Which has the greater initial value (y-intercept)?

• A. A
• B. B

Question 3

Ana's savings: y = 3x + 4. Maya's savings (x = weeks): weeks 0, 1, 2, 3 → 3, 11, 19, 27. Who saves more per week?

• A. Ana
• B. Maya

Question 4

Function A: y = −x + 8. Function B is a line through (1, 5) and (2, 8). Which has the greater initial value (y-intercept)?

• A. A
• B. B

Question 5

Sam's savings: y = 9x + 2. Kofi's savings (x = weeks): weeks 0, 1, 2, 3 → 1, 9, 17, 25. Who saves more per week?

• A. Sam
• B. Kofi

Question 6

Function A: y = 2x + 3. Function B is a line through (1, −7) and (2, −10). Which has the greater initial value (y-intercept)?

• A. A
• B. B

Question 7

Kwame's savings: y = 6x + 0. Daniel's savings (x = weeks): weeks 0, 1, 2, 3 → 5, 13, 21, 29. Who saves more per week?

• A. Kwame
• B. Daniel

Question 8

Function A: y = x + 1. Function B is a line through (1, 6) and (2, 9). Which has the greater initial value (y-intercept)?

• A. A
• B. B

Question 9

Noah's savings: y = 3x + 4. Hana's savings (x = weeks): weeks 0, 1, 2, 3 → 10, 14, 18, 22. Who saves more per week?

• A. Noah
• B. Hana

Question 10

Function A: y = 3x − 1. Function B is a line through (1, 8) and (2, 12). Which has the greater initial value (y-intercept)?

• A. A
• B. B

Question 11

Ethan's savings: y = 4x + 10. Mei's savings (x = weeks): weeks 0, 1, 2, 3 → 5, 10, 15, 20. Who saves more per week?

• A. Ethan
• B. Mei

Question 12

Function A: y = 4x + 9. Function B is a line through (1, −2) and (2, −6). Which has the greater initial value (y-intercept)?

• A. A
• B. B

Question 13

Kwame's savings: y = 3x + 10. Kai's savings (x = weeks): weeks 0, 1, 2, 3 → 7, 11, 15, 19. Who saves more per week?

• A. Kwame
• B. Kai

Question 14

Function A: y = 2x − 5. Function B is a line through (1, −1) and (2, −2). Which has the greater initial value (y-intercept)?

• A. A
• B. B

Question 15

Omar's savings: y = 4x + 7. Yuki's savings (x = weeks): weeks 0, 1, 2, 3 → 0, 3, 6, 9. Who saves more per week?

• A. Omar
• B. Yuki

Question 16

Function A: y = 4x + 3. Function B is a line through (1, 1) and (2, −2). Which has the greater initial value (y-intercept)?

• A. A
• B. B