Determine the value of y, if x is -7 y=
∣x∣-5

y = 2

Step-by-step explanation:

y = |x| - 5

|?| means an absolute value of a number

in this case x = -7 so the absolute value for -7 would be 7

y = 7 - 5

y = 2

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