Examlex
Use the vertical line test to determine whether the graph represents a function.
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Normally Sighted
Having vision within the range considered typical or normal, without significant visual impairment.
Smiling
A facial expression formed by flexing the muscles at the sides of the mouth, often signifying joy, amusement, or sociability.
Blind Group
A control group in an experiment that is not exposed to the treatment or intervention being tested, ensuring that the effect of the variable being studied can be accurately measured.
Social Smile
An infant's spontaneous smile, often occurring from birth and becoming socially responsive between 6 to 8 weeks of age.
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Q70: <span class="ql-formula" data-value="f(x)=e^{x}+5"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo stretchy="false">(</mo><mi>x</mi><mo
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