What is the initial value of the equation shown? y = 3x-7

The initial value equals the y-intercept. The equation is in the slope-intercept formula where b is the y-intercept. The answer would be -7. [Note: If it's + in front of the b value, it's a positive value (b). If - is in front of it, it's a negative value (-b).]

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.