PLZ help will give 100 points and brainliest to whoever help me out! Determine if each relation is a function:
1. (-4, 5); (3, 2); (-1, 4); (2, 3); (0, 3)
2. (-5, 4); (2, 4); (3, 4); (5, 4); (0, 4)
3. A square.
4.. y=−5x+ 1
5. A vertical line.

Evaluate given the function below:
f(x) =x2+ 4x−2
6.f(3
7.f(0)
8.f(−2)
Write each function in slope-intercept form
:9.4y=−8x−10
10. −5x+ 2y=−10
Write each function in standard form:
11.3y=−5x+ 9
12.4x−10 =−2y
Given a point and the slope, write it in point-slope form:
13. (1, -5); m = -2
14. (-3, 7); m = -5
Find the slope:
15. (4, 3); (-1, 10)
16. (3, -5); (2, -5)
17. (-5, 2); (-5, 3)
Write the linear equation that describes each scenario:
18. At a dam, the water level started at 500 ft above the ground, every month it increases for about 2 inches.
19. At another dam, the water level started at 450 ft above the ground, every month it decreases by 3inches.