Slope for the function is -1/3.5.
8:15 or 8 to 15 would be the ratio because you compare 8 quarters to 15 coins.
Slope intercept form is y=mx+b where m is the slope and b is the y part of an intercept where x is 0. So the equation for slope (y1-y2)/(x1-x2) with y1 and y2 the y values of 2 points and x1 and x2 those points' x values, so if you would use the points (-2,0) and (0,5) (I used intercepts because they are easier, but you can use any points on the line) you would get (0-5)/(-2-0) and then 5/2 for the slope. plugging in then you get y=5/2*x+5
Answer:
There are 15 halves in 7 1/2.
What do you want me to do