To determine whether a graph of a relation is also a function, shayla declares that the y-axis is a vertical line and counts the number of times that the graph intersects the y-axis. if the graph has exactly one y-intercept, shayla concludes that the graph shows a function. in all other cases, she declares that it is not a function. is shayla applying the vertical line test correctly? options: no, because the y-axis is a horizontal line. no, because using the y-axis tests only whether x = 0 is mapped to multiple values. yes, because multiple y-intercepts represent multiple x-values being mapped to y = 0.yes, because the y-axis represents all vertical lines of the x-values.

No, because using the y-axis tests only whether x = 0 is mapped to multiple values

Step-by-step explanation:

To test if a graph of a relation is also a function, you need to test ALL values in the domain and not just x=0 (which is the y axis)

Step-by-step explanation:

Shayla is not actually applying the vertical line correctly.

The vertical line test consist in drawing a vertical line across the function curve. The reason why the y-axis doesn't work as vertical line test is because Shayla is only seeing if the function intercept it more than one time, which is not correct because some function doesn't even touch the y-axis. The vertical is always drawn on the curve, all across.

In other words, Shayla is basically testing only when the dependent variable is zero, she is not considering other elements of the domain.

Therefore the answer is "No, because using the y-axis tests only whether x = 0 is mapped to multiple values."

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt

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step-by-step explanation: