Question 308348
Y-intercept: Set {{{x=0}}}.
{{{F(0)=0+0+4=4}}}
(0,4)
X-intercepts: Set {{{25x^2+20x+4=0}}}
You can factor this quadratic.
{{{(5x+2)^2=0}}}
{{{5x+2=0}}}
{{{5x=-2}}}
{{{x=-2/5}}}
A double root at x=-2/5.
(-2/5,0)
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{{{ graph( 300, 300, -2, 1, -1, 5,  25x^2+20x+4) }}}