All Tasks
Graph (Intermediate-Learning)
The figure shows the graphs of 4 functions, match each function with its graph.
# Linear functions
Learning
9
value (Beginner-Exercising)
Consider the function f defined by $f(x) = -5x -1$.
Find the value of $x$ whose image is $−8$.
(Present the result with one decimal place)
# Linear functions
Training
9
Intersection
Given two linear functions $y_1 = \frac{x}{2} + 2$ and $y_2=-x+5$. Can you find their point of intersection?
# Linear functions
Training
8
Positions of two graphs
The graphs of the two linear functions $y_1 = \frac{6}{8} x +1.1$ $y_2= \frac{3}{4}x - 1$ are ....
[Select the right answer below.]
# Linear functions
Training
8
How many seconds? (E_M)
Of all winged predators, the peregrine falcon is the most remarkable in its combination of beauty and flight ability. Knowing that the peregrine falcon is 1500 m high (A) and that when descending, it loses 60 m high every second, how many seconds does it take to catch a rock pigeon that is 30 m above the ground?
# Linear functions
Modeling
9
Graph_TF (Beginner-Exercising)
The lines r, s, t, u, v are represented in the figure.
State whether the following statements are true (T) or false (F).
- The slope of the line t is 4. **________**
- The y-intercept of the line v is -2 **________**
- The line r is the graph of a linear function with $y=-x$. **________**
# Linear functions
Training
9
