Coordinates and linear graphs

Advanced Math 7 · Unit 10 · slope-linear-graphs

slope-linear-graphs

Name ______________________________Date ______________

1.
Find the slope of the line through $(2, 5)$ and $(6, 17)$ .
Answer: ______________
2.
Write an equation of the line through $(0, 3)$ and $(4, 1)$ .
Answer: ______________
3.
The water level in a tank, in cm, after $t$ minutes of draining is given by $h = 60 - 4t$ . Which statement is correct?
1. (A)
  The tank starts at $60$ cm and the level falls $4$ cm every minute.
2. (B)
  The tank starts at $4$ cm and the level falls $60$ cm every minute.
3. (C)
  The tank starts at $60$ cm and the level rises $4$ cm every minute.
4. (D)
  The tank is empty after $4$ minutes.
4.
What is the slope of the line through $(1, 2)$ and $(4, 8)$ ?
1. (A)
  $\dfrac{1}{2}$
2. (B)
  $2$
3. (C)
  $-2$
4. (D)
  $6$
5.
The points $(-2, 11)$ , $(1, 2)$ , and $(4, k)$ lie on the same straight line. What is $k$ ?
Answer: ______________