Question

Find the value of x so that (x, 6) satisfies:

y = -x - 4
39. Find the value of y so that (-2, y) satisfies:
y = -2x^2 (negative two x to the second power)

Answer 1

The value of x that satisfies the equation y = -x - 4 with the point (x, 6) is x = -10. The value of y that satisfies the equation y = -2x^2 with the point (-2, y) is y = -8.

Step-by-step explanation:

To find the value of x so that (x, 6) satisfies y = -x - 4, we substitute y with 6 and solve for x:

6 = -x - 4

Add 4 to both sides:

6 + 4 = -x

10 = -x

Therefore, x = -10.

To find the value of y so that (-2, y) satisfies y = -2x^2, we substitute x with -2:

y = -2(-2)^2

y = -2(4)

y = -8

Therefore, y = -8.