Age (years) 1 2 4 10 9 8 6 3
Car’s Value ($000) 24 21 15 4 6 7 10 17
a. Compute the Coefficient of correlation. Explain the value
b. Compute the Coefficient of determination. Explain the value
c. Estimate the least square linear equation.

The vertex of this parabola is at (-4,-1). when the y-value is 0, the x-value is 2. What is the coefficient of the squared term in the parabola equation?
3
-3
6
-6

1 mark 17. The coefficient matrix of a homogeneous system of 10 linear equations in 15 unknowns has rank 4. How many parameters are there in the solution to the system? A: 4 B: 5 C: 6 D: 10 E: 11

What are the values of a, b, c in the quadratic equation -2x²+4x-3=0, where a, b, c are the coefficients of x², x¹, x⁰ respectively?