Astraight line on a coordinate plane always represents a function. true or false

False.

Step-by-step explanation:

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

We know that a line is function, when each value of x corresponds to exactly one y-value.

We can also test whether a line using vertical line test. If a vertical line intersects a line exactly at one place, then line represents a function. If a vertical line intersects a line more than once, then line is not a function.

A straight line on a coordinate plane does not always represent a function because vertical lines in form , where a is any real number, will fail vertical line test.

Therefore, our given statement is false.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7