All Tasks
Simplify the algebraic expression_2
If we simplify the expression:
$ 3,5x-2y+6,5x-3,5y+2,3-7x-6$ the result is....
# Linear equations
Learning
8
Distributive Property in Algebraic Expressions_1
Fill in the blanks with numbers to make the following equalities true
# Linear equations
Training
8
Tangent and normal lines
Consider the function $f$, with domain $D_f = \left[0, 1\right]$, defined by $f(x)= \dfrac{\pi}{2} -2 \arcsin(1-2x)$.
Let $r$ be the line tangent to the graph of the function $f$ at the point with abscissa $a$.
It is known that line $r$ is perpendicular to line $x+4y=12$.
# Functions of one variable
Training
13
Missing coordinate
Give the missing coordinate p of the point P(2.2;p) in that way, that P is element of the graph of the linear function f with f: y = 4.4 - 0.5 x
# Linear functions
Training
7
Escalator
The ride on an escalator can be described by the function f with f: y = -0.4 x + 6.6. Thereby x is in this equation the time for the ride in seconds, y the height in meter.
A person takes the escalator to the next floor. The next floor is 3.5 m heigt. Estimate the time for the ride.
# Linear functions
Modeling
5
Solving linear equation 1
Solve the linear equation by equivalent transformation.
7x + 22 = 71
# Linear equations
Training
7