Question

Help me solving number 22 & 24. Thanks:)

Answer 1

Question 22

x intercept is 7

y intercept is 4

The answer is C

Question 24

x intercept is -4

y intercept is 7

The answer is B

Explanation:

x and y intercepts are the points at which the graph meets x and y axes.

x and y intercepts can be found the following way,

y intercept - substitute 0 to x

x intercept - substitute 0 to y

Question 22

`7y=28-4x`

Substitute x=0 to find the y intercept

`7y=28-4*0`

=
`7y=28`

=
`y=4`

Substitute y=0 to find x intercept

`7*0=28-4x`

=
`0=28-4x`

=
`4x=28`

=
`x=7`

Therefore,

x intercept is 7

y intercept is 4

The answer is C

Question 24

`4y=7x+28`

Substitute x=0 to find the y intercept

`4y=7*0+28`

=
`4y=28`

=
`y=7`

Substitute y=0 to find x intercept

`4*0=7x+28`

=
`0=7x+28`

=
`-7x=28`

=
`x=-4`

Therefore,

x intercept is -4

y intercept is 7

The answer is B