Write the equation of a rational function with vertical asymptotes of x=4 and x=-5, horizontal asymptote of y=5/2 and x-intercepts of 3 and -3. finally, there is a hole at x=7 and y-intercept at 9.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116