Answer :
Answer:
Step-by-step explanation:
Substituting the value of x and solving the function we get the value of y as y = 1To evaluate the co-ordinate point (x, y) for the functiony = f(x) = -1.25x -0.25, you need to substitute the value of x into the function and solve for y.If x = -1, then y = f(-1) = -1.25×(-1) - 0.25 = 1.25 - 0.25 = 1.Therefore, the coordinate point (x, y) for the function:y = f(x) = -1.25x - 0.25 when x = -1 is (-1, 1).A function in mathematics is a collection of values connected by a predetermined rule or formula. The output value (also known as the dependent variable) is represented by a letter or a symbol that depends on the input value, whereas the input value (also known as the independent variable) is represented by a letter (such as x or y). Functions are frequently used to represent relationships between several numbers or to simulate real-world occurrences.
