Answer: 45
Step-by-step explanation:
- Function notation: is another way of writing a function to make it easy to understand
- Instead of the independent and dependent variables being x and y they are now x and f(x)
- f(x) can be interpreted as the y value at a given x value
- in this case f(-5) must be solved for, essentially saying what is y when the x value is -5
[tex]f(-5)=2(-5)^{2} -5[/tex]
[tex]f(-5)= 2(25) -5[/tex]
[tex]f(-5) = 50-5[/tex]
[tex]f(-5) = 45[/tex]
