The line representing a proportional relationship always goes through the point (0,0). If x is zero, multiplying x by the constant will always give you 0 for y. Try it with our ice cream example. Make the independent variable, number of scoops, 0. The constant is 2. 0 × 2 = 0. The dependent variable is also 0. What other point will appear on the line representing this proportional relationship where the constant of proportionality is 2? A (1,3) B (2, 4) C (2, 2) D (4, 2)

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?