(x) = ax 2 + bx + c has a negative leading coefficient and the vertex that has a negative y-coordinate. Determine the number of
real zeros of the function.
1 answer:
The number of real zeroes are the x intercepts or where the graph touches the x axis
negative leading coeficnet means it opens down
negative y coordinate means that the highest point is below the x axis
since it opens down and it is below the x axis, there is no x intercept or real solution (see attachment)
thereforr there are no real roots, there are zero real roots, nada, zip
negative leading coeficnet means it opens down
negative y coordinate means that the highest point is below the x axis
since it opens down and it is below the x axis, there is no x intercept or real solution (see attachment)
thereforr there are no real roots, there are zero real roots, nada, zip
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Answer:
PB = 1.8
Step-by-step explanation:
PQ = 8 cm, BC = 10 cm and AB = 9 cm
∆ABC is similar to ∆APQ.
Therefore:
Plug in the values
Cross multiply
AP × 10 = 8 × 9
AP × 10 = 72
Divide both sides by 10
AP = 7.2
PB = AB - AP
PB = 9 - 7.2
PB = 1.8