if f(x) = 5x + 40, what is f(x) when x = -5? -9 -8 7 15

if f(x) = 5x + 40, what is f(x) when x = -5? -9 -8 7 15

if f(x) = 5x + 40, what is f(x) when x = -5? -9 -8 7 15

Answer

Explanation:

Step1: Sustituir el valor de x

Sustituimos (x = - 5) en la función (f(x)=5x + 40). [f(-5)=5\times(-5)+40]

Step2: Realizar la multiplicación

Calculamos (5\times(-5)=-25). [f(-5)=-25 + 40]

Step3: Realizar la suma

Sumamos (-25+40 = 15). [f(-5)=15]

Answer:

15