Help please how do I solve for k

Which best describes the transformation that occurs in the graph? a) dilation b) reflection c) rotation d) translation

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²