Question

Given this equation what is the value of y at the indicated point?

Answer 1

We are given the equation of a parabola,
`y=-x^2+2`. The question asks us to find both values of a point given the the x-coordinate which is -3. To find the y-coordinate, simply plug in -3 for x into the equation of the parabola.

`y=-x^2+2 \Longrightarrow y=-(-3)^2+2 \Longrightarrow y=-(9)+2 \Longrightarrow y=-9+2`

`\Longrightarrow y=-7`

Thus, the point is (-3,-7)