Is the following relation a function?

6n^2-7n-75=0 solve by quadratic formula

Question 101 points)which equation in slope-intercept form represents the line that passes through (5, 1) and(-4,7)

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.