The graph below does not represent a function because it fails the vertical-line test.

which is the best explanation of why a graph that fails the vertical line test does not represent a function?
a. if a vertical line intersects a graph more than once, this indicates that there are multiple points with the same y-value. a function cannot have repeated y-values.
b. on a vertical line, one x-value is paired with many y-values. a function cannot have one x-value paired with different y-values, so a vertical line is not a function.
c. the points where a vertical line intersects a graph have the same x-value but different y-values. the graph of a function cannot have points with the same x-value but different y-values.
d. the relation represented by a vertical line maps many x-values to the same y-value. this kind of mapping is not a function. so if a graph intersects a vertical line more than once, that graph is not a function either.

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.

jwjwkwkwkkkdjebd b jdjejdndj he jenej

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.

she will travel a distance in the range of 3 - 11 miles