To find f(-7), just plug -7 in for all x
2(-7) + 8
-14 + 8
-6 is the answer!
<span>Write a variable expression for the sum of a number w and 2:
w + 2</span>
Answer:
3
Step-by-step explanation:
We know x = -2, so we can substitute -2 in for x
3x^2- 9
3*-2^2-9
Solve the exponent first (PEMDAS)
3*4-9
Multiply next
12-9
Subtract
3
Answer:
Hello my friend, I hope this helps you!
Step-by-step explanation:
Given:
The terminal point of
is (1,0).
To find:
The value of
.
Solution:
If the terminal point of
is (x,y), then

It is given that the terminal point of
is (1,0).
Here, x-coordinate is 1 and the y-coordinate is 0. Using the above formula, we get


Therefore, the value of
is 0.