Question

y=5x^2+7x-5 Use the quadratic formula to find any x-intercept on the graph of the equation.

Answer 1

the quadratic formula is use for quadratics

\[ax^2 + bx + c = 0\]

\[x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\]

in your question a the x-intecepts are where y = 0

so you would have a = 5, b = 7 and c = -5

just substitute and evaluate.

Answer 2

how would i do that

Answer 3

can you help me with that

Answer 4

do order of operation

Answer 5

is that the x intercept

Answer 6

yes

Answer 7

what number is under the square root sign