Question

Monica graphed y = -3x + 4. If the slope

were multiplied by -2 and the y-
intercept were shifted down 6 units,
then which of the following equations
may be used to represent the changes?

Answer 1

Explanation:

Let's create mathematical models :

y = -3x + 4

(given that, y = mx + b, → m = -3)

multiplied slope by -2, then (-3)(-2) = 6

y-intercept were shifted down 6 units, then 4 + (-6) = -2 units.

Now, new equations to represent this fact is :

y' = 6x - 2

y' indicate changes from y

Subject : Mathematics

Level : JHS

Chapter : Linear Function