There are 4 types of the questions on Mrs. Moore's English final exam. The percent of each type of the question is shown in the
graph. There are a total of 50 questions on the test. Essay questions have a value of 10 points each. The remaining questions have a value of 2 points each. What is the maximum number of points that can be earned on Mrs. Moore's final exam?
1) Use point-slope formula to find the slope-intercept form (or y = mx + b form) of the equation. m represents the slope, and and represent the x and y values of a point the line intersects. So, substitute for m, -4 for , and 7 for . Then, simplify and isolate y on the left side like so: