Melissa wakes up on a cold january morning and checks the weather forecast. right now, the temperature reads -10f. the weather forecast predicts a high of 30f that afternoon. how many degrees will the temperature rise that day ?

20°

Step-by-step explanation:

it will be 20 degrees because you have to subtract 30°-10° and that gives you 20°.if you want to check it just add 20°+ 10° and that equals 30

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1