Question

Graph of $y=x^2+7x+3$ intersects the $x$-axis at __ points

• A. 2.0
• B. 2.00
• C. 2

Answer 1

Answer: (A), (B), (C)

$y=x^2+7x+3$
$a=1,b=7,c=3$

$D=b^2-4ac=49-4\left(1\right)\left(3\right)$
$=49-12=37>0$

As $D>0$, the roots will be real & distinct

So, graph of given expression touches the $x$-axis at 2 points.