In the regression line equation $y = -10 + 3x$, the general form is $y = mx + b$, where:

• $m$ represents the slope of the line,
• $b$ represents the y-intercept, which is the value of $y$ when $x = 0$.

From the given equation $y = -10 + 3x$:

• The slope $m = 3$,
• The y-intercept $b = -10$.

So, the correct statement is:

The y-intercept = -10 and the slope = 3.

Would you like any more details or explanations? Here are some related questions to think about:

1. How does the slope of a line affect its direction?
2. What is the significance of the y-intercept in a real-world context?
3. How would the line change if the slope were negative?
4. Can you rewrite the equation in terms of $x$ instead of $y$?
5. How would you find the x-intercept of the line?

Tip: In regression, the slope represents the rate of change, and the y-intercept is the starting value when the independent variable is zero.