Review 1

Which statement correctly defines a function?

• a function assigns to each element of the range exactly one element of the domain

• a function is every number on a coordinate plane

• a function assigns to each element of the domain exactly one element of the range

• a function is when the entire graph is shaded on desmos.

What is the slope in the equation: y = 7x -14

• -14

• 7

• 7x

• 14

rate of change is the same as?

This sign represents a closed circle/solid line

• =

• >

• <

• the answer is not listed

the y intercept equals 9 in which equation?

• y = 7x + 9

• x = 9

• y = 9x + 2

• y = -5x - 9

Which equation represents a function? What should you do on desmos when you recognize it?

• y = 2x ; put it in desmos and draw the graph

• f(x) = 5x + 10 ; put the function in desmos and pull up the table

• 9 - 2 x 7 +16 ; put it in desmos and find where the line crosses the x axis

• 19 (x - 4) ; desmos is not needed, just distribute.

slope is the same as???

• x/y

• y/x

• it does not matter if the x is on top or the y is on top

What value in an equation represents initial height? (ex: variable, like term, etc.)

Which is the formula for finding slope when given a graph?

• m in slope-intercept form

• rise/run

• y2 - y1/ x2 - x1

• run/ rise

What is the formula for finding slope when given a table or 2 points?