Question 1205875
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The function is {{{5x^2+70x+245}}} = {{{5(x^2+14x+49)}}} = {{{5(x+7)^2}}}<br>
That is a parabola with vertex at (-7,0) and opening upward.<br>
Ⓐ The y-intercept of the function is −7.
FALSE.  The y-intercept (when x=0) is (0,245), or just 245. -7 (or (-7,0)) is the x-intercept, not the y-intercept.  <br>
Ⓑ The vertex of the function is at (−7, 0).
TRUE<br>
Ⓒ The function is symmetric about the line x = 7.
FALSE.  It is symmetric about the line x = -7.<br>
Ⓓ The function is decreasing when −∞ < x < −7.
TRUE.  And increasing when -7 < x < ∞.<br>
Ⓔ The range of the function is all positive real numbers including zero.
I'm not sure how to answer this one.  "all positive real numbers including zero" is self-contradictory....<br>