X=-6 that should be the answer
X=-4, the cube root of -64 is 4. (subtract 64 from both sides and find cube root)
Step-by-step explanation:
the slope is the ratio of "y coordinate difference / x coordinate difference".
so, let's find 2 good points (I mean by that with integer coordinates). I see e.g.
(-1, -1) and (0, -7)
x changes by +1 (from -1 to 0).
y changes by -6 (from -1 to -7).
so, the slope is -6/1 = -6.
D is the right answer.
Answer:
The slope (m) = 1/3 and the y-intercept (b) = -4
