Martin earns a base salary and a commission on each new policy, so Martin's weekly income(I), depends on the number of new policies(n), he sells during the week. Last week he sold 4 new policies and earned $680 for the week. The week before, he sold 7 new policies and earned $950. a) Find an equation for I(n). then interpret the meaning of each component
b) What would be his income for the week during which he sold 9 new policies?

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

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