Question 371956
y-intercept: Set {{{x=0}}} and solve for {{{y}}}
{{{y=f(0)=0+0+3=3}}}
({{{0}}},{{{3}}})
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x-intercept: Use the vertex form.
{{{-16(x-1/4)^2+4=0}}}
{{{16(x-1/4)^2=4}}}
{{{(x-1/4)^2=1/4}}}
{{{x-1/4=0 +- 1/2}}}
{{{x=1/4 +- 1/2}}}
{{{x=3/4}}} and {{{x=-1/4}}}
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({{{3/4}}},{{{0}}}) and ({{{-1/4}}},{{{0}}})