Cos 45 degrees in fraction form?

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

100 points, hi, i’m not sure what to do here, the data doesn’t seem to be quadratic .? can anyone me, in advance

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached