Question

4. How many real-number solutions does the equation have?
x^2 + 7x - 5 = 0

a. One solution
b. Two solutions
c. No solutions
d. Infinitely many solutions​

Answer 1

2 solutions. This is because the parabola will cross the x axis twice. We know this because -5 means the vertex will be 5 units below the x axis. and the parabola opens upwards because the first coefficient is positive. Hope this helped :)