1. Determine whether the relation is a function.
{(-2, -7), (3, -5), (6, -4), (9, -6), (10, -1)}
2. Determine whether the relation is a function.
{(-5, -4), (-2, 9), (-1, -2), (-1, 7)}
3. Determine whether the relation is a function.
{(-7, -1), (-7, 2), (-1, 8), (3, 3), (10, -7)}
4. Determine whether the relation is a function.
{(1, -3), (1, 1), (6, -8), (9, -3), (11, -3)}
5. Determine whether the relation is a function.
{(-6, -9), (-2, 1), (1, -1), (7, -7)}
6. Determine whether the equation defines y as a function of x.
x + y = 9
7. Determine whether the equation defines y as a function of x.
x2 + y2 = 1
8. Determine whether the equation defines y as a function of x.
x = y2
9. Evaluate the function at the given value of the independent variable and simplify.
f(x) = -3x - 8; f(-2)
10. Evaluate the function at the given value of the independent variable and simplify.
f(x) = x2 - 1; f(x - 2)
11. Evaluate the function at the given value of the independent variable and simplify.
f(x) = 4x2 + 5x - 6; f(x - 1)
12. Evaluate the function at the given value of the independent variable and simplify.
f(x) = ; f(5)
13. Find the slope of the line that goes through the given points.
(3, -5), (-9, -8)
14. Find the slope of the line that goes through the given points.
(-7, 6), (-7, -9)
15. Find the slope of the line that goes through the given points.
(-1, 4), (5, 4)
16. Find the slope of the line that goes through the given points.
(-2, -6), (-9, -17)
17. Find the slope of the line that goes through the given points.
(-8, 8), (-5, 2)
18. Find the slope of the line that goes through the given points.
(-3, -7), (9, -7)
19. Use the given conditions to write an equation for the line in point-slope form.
Slope = 4, passing through (-3, 7)
20. Use the given conditions to write an equation for the line in point-slope form.
Slope = , passing through (8, 7)
1 answer
1 answer