Answer:
A. For the graph, the rate of change is -2 and for the equation, it is 2.
Step-by-step explanation:
The rate of change of the line on the graph can be found by considering the rise or fall when moving one unit to the right. This line falls 2 units for each unit to the right, so its rate of change (slope) is -2.
The rate of change of the equation can be found by looking at the coefficient of x. It is 2.
So, the appropriate description is ...
For the graph, the rate of change is -2 and for the equation, it is 2.
The first one the second one the fourth one and the last one
Step-by-step explanation:
7x² + 9x² - x²
when you wrote the expression you used the "multiplication ×" and not "x".
anyway, when you have terms of the same variable of the same exponent, then the combination variable and exponent become an item. and the same items can simply be added in an expression.
this is similar to
7 apples + 9 apples - 1 apple
what would you do there ?
see ?
and the same we are doing now for the given expression : we are adding the terms up :
7x² + 9x² - x² = (7 + 9 - 1)x² = 15x²
and in the middle I gave you even the reason why we can do that.
please, let me know, if this is still unclear.
