Answer:
Range:
set building notation: {y| y<= 14}
interval notation:
(-infinitysymbol, 14]
simple form:
y <= 14
Step-by-step explanation:
A quadratic function has a u-ish/v-ish shape called a parabola. Since your function has a negative in front, it is flipped upside down, so it has a peak and the two ends extend down, down, down forever.
Range is the set of all the y values. This parabola has a highest point. They said it was (-3, 14) Here the y value is 14, that is the biggest y on this graph. And all the other y's are smaller and go down to negative infinity.
