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