Sin(-x)= -sin(x) for all values of (x)

a. true
b. false

A. True.

Step-by-step explanation:

We have been given a statement. We are asked to determine whether our given statement is true or false.

Statement:

for all vales of (x).

We know that a function f(x) is odd if for all values of x.

Since we know that sine is an odd function and it is symmetric about the origin, therefore, our given statement is true.

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

c

step-by-step explanation:

c