Explain what is the slope, and what is the y-intercept.

slope :

The steepness of a line expressed as a ratio, using any two points on the line.

y-intercept

The value of  y  at the point where a curve crosses the y-axis.

Step-by-step explanation:

Assuming the question is "how much more money needs to be raised..."

Add the contributions:

5,358 + 2,834 + 4,132 = 12,324 < this is the current total amount raised. subtract this from the goal, 14,000 to find out much more money is needed for the playground.

14,000 - 12,324 = 1,676

 $1,676  is still needed in order to create the playground.