Question

Graph the equation.
- 5/4 (x-1)(x+3)

Answer 1

Explanation:

So, to graph a parabola we must have at least 3 points, the x intercepts and the turning point. Currently the equation is in x intercept form which means that we know straight away (assuming the equation =0) that the x intercepts are:

(1,0) and (-3,0)

Now we have to find the turning point and we can do this by putting the equation into turning point form:

-5/4(
`x^(2) +2x-3`)

-5/4((
`(x+1)^(2) -3-1`)

-5/4
`(x+1)^(2)+5`

Now we can figure out the turning point which is:

(-1,5)

Graph those three points and you should get a parabola shape