Answer:

Step-by-step explanation:
If -2 and 5 are double roots of the polynomial function, then the function expression is

Rewrite this function in standard form:

The constant term of the polynomial in standard form is -40, so

Therefore, the function expression is

Answer:
Gggyu
Step-by-step explanation:
Hbyuk
Answer:
a) 0
b) 4.5
c) 3
d) 6
Step-by-step explanation:
Formula: 3x + 4y = 12
The questions contains the values of x. So here's an example of:
d) x = -4, y = ?
Using the formula: 3(-4) + 4y = 12
-12 + 4y = 12
4y = 24
y = 6
Do the same for the others!